There’s something undeniably enchanting about desserts that transform a simple gathering into a celebration. When I decided to whip up a Strawberry Mousse Cake, I knew I was diving into a realm of vibrant flavors and airy textures that would not only delight my taste buds but also impress my friends. The moment I layered the light and fluffy white cake with that luscious, velvety strawberry mousse, I could almost hear the joyful echoes of laughter and conversations that would soon fill my kitchen.
This recipe marries the soft sweetness of cake with the refreshing, summery essence of strawberries, creating a crowd-pleasing dessert that’s perfect for any occasion. Whether it’s a sunny afternoon tea or a cozy dinner party, this cake serves as a versatile centerpiece that brings people together. Best of all, while it looks like a treat worthy of a fancy bakery, you’ll discover that making it from scratch is not only achievable but also incredibly rewarding. Grab your apron, let’s indulge in the delightful process of creating this strawberry sensation!
Why is this Strawberry Mousse Cake so special?
Irresistible Delight: The airy layers of the white cake perfectly complement the rich strawberry mousse, creating a flavor explosion in every bite.
Visually Stunning: With vibrant red strawberries atop a pristine white cake, it’s a feast for the eyes as much as for the palate.
Effortlessly Impressive: This cake looks like it came straight from a pastry shop, yet is surprisingly easy to make at home. Perfect for impressing guests!
Versatile Treat: Ideal for celebrations, picnics, or simply satisfying a sweet craving, this cake adapts to any occasion.
Flavorful Fusion: The combination of sweet strawberries and fluffy cake enhances your dessert experience, leaving you craving more.
Make sure to check out my guide on using seasonal fruits for even more delicious dessert ideas!
Strawberry Mousse Cake Ingredients
• Here’s what you need to create this delightful treat!
For the White Cake
- Cake flour – 2 cups; this gives the cake a light and fluffy texture.
- Baking powder – 3/4 TBSP; essential for a nice rise in your cake.
- Salt – 3/4 tsp; enhances the overall flavors of the cake.
- Unsalted butter – 10 TBSP, room temperature; ensures a tender crumb when creamed with sugar.
- White granulated sugar – 1 cup; sweetens the cake while contributing to its delicate structure.
- Oil – 3 TBSP, canola or vegetable oil; adds moisture to the cake without weighing it down.
- Egg whites – 4, room temperature; helps to create a light and airy texture.
- Pure vanilla extract – 2 tsp; infuses the cake with a warm, sweet flavor.
- Sour cream or Greek yogurt – 1 1/4 cups, room temperature; adds moisture and tanginess to the batter.
For the Strawberry Mousse
- Strawberries – 16 oz, fresh or frozen; the star ingredient for that luscious strawberry flavor.
- White granulated sugar – 1/2 cup; balances the tartness of the strawberries beautifully.
- Pure vanilla extract – 2 tsp; enhances the sweet, fruity notes of the mousse.
- Powdered gelatin – 2 1/4 tsp, or 1 packet; acts as a stabilizer for the mousse.
- Cold water – 2 TBSP; helps to activate the gelatin for a smooth texture.
- Heavy cream – 1 1/2 cups, cold; whips up beautifully to give the mousse its lightness.
- Ground freeze-dried strawberries – 1 oz; adds intense strawberry flavor and a hint of color.
- Fresh strawberries – for decoration; adds a pop of freshness perfect for presentation.
Now that you have everything ready, let’s dive into making your dazzling Strawberry Mousse Cake that will surely impress!
How to Make Strawberry Mousse Cake
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Preheat oven: Start by preheating your oven to 350°F. Prepare a 9X9-inch square or circular pan by spraying it with nonstick baking spray, then line the bottom with parchment paper and spray again for easy release.
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Sift dry ingredients: In a medium mixing bowl, sift together the cake flour, baking powder, and salt. This step is crucial for a light and airy cake, so don’t skip it!
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Cream butter and sugar: In a large mixing bowl, combine the unsalted butter, white sugar, and canola oil. Beat on high speed for about 3 minutes until the mixture is fluffy and light in color—this creates the perfect base for your cake.
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Add wet ingredients: Next, add the egg whites, vanilla extract, and sour cream (or Greek yogurt) to the butter mixture. Mix on medium speed until everything is smooth and well combined.
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Combine dry and wet: Gradually add the sifted dry ingredients to the batter in thirds, mixing on low speed until just combined. Scrape down the sides of the bowl to make sure no flour hides away.
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Pour batter: Carefully pour the cake batter into your prepared pan, spreading it evenly. Take a moment to appreciate the lovely texture of your batter!
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Bake the cake: Place the cake in your preheated oven and bake for 35-40 minutes. Keep an eye on it, and check with a toothpick—when it comes out clean, your cake is done!
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Cool the cake: Let the cake sit in the hot pan for about 10 minutes before transferring it to a cooling rack. Allow it to cool completely before moving on to the mousse.
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Make strawberry puree: Blend the strawberries into a thin puree. If you’re using frozen berries, ensure they’re thawed first. Strain the puree through a mesh sieve to remove the seeds, tossing them away.
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Cook strawberry mixture: In a medium saucepan, combine the strawberry puree, sugar, and vanilla extract. Heat on medium until it starts to simmer, then reduce to medium-low heat, cooking for 3-5 minutes until slightly thickened.
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Prepare gelatin: In a small bowl, mix the cold water with the powdered gelatin and let it bloom. Once the strawberry mixture has thickened, stir in the gelatin and heat gently until dissolved.
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Chill mixture: Pour the strawberry mixture into a bowl and place it in the fridge until completely cool. If you’re short on time, the freezer can speed things up a bit!
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Whip cream: While the strawberry mixture cools, chill a metal bowl and whisk attachment in the freezer for about 10 minutes. Then, add the heavy cream and beat on high speed until stiff peaks form.
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Incorporate freeze-dried strawberries: Once whipped, gently fold in the ground freeze-dried strawberries to infuse additional flavor and color.
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Combine with strawberry mixture: Add half of the cooled strawberry mixture to the whipped cream, folding gently until almost mixed. Add the rest of the mixture and fold until just combined, being careful not to deflate the whipped cream.
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Prepare the pan: Clean and re-spray your 9X9-inch pan. Add a piece of parchment paper, letting it hang over the sides for easy removal, and spray again.
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Assemble the cake: Place the cooled white cake into the prepared pan. Carefully top it with the strawberry mousse, smoothing the top. Refrigerate for at least 4 hours to allow the mousse to set properly.
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Serve the cake: Once set, remove the cake from the pan, cut it into slices, and garnish with fresh strawberries for a beautiful presentation!
Optional: Add a drizzle of chocolate sauce for an extra indulgent touch!
Exact quantities are listed in the recipe card below.
Strawberry Mousse Cake Variations & Substitutions
Feel free to get creative and make this delightful cake your own with these fun twists and alternatives!
- Gluten-Free: Substitute cake flour with a gluten-free all-purpose blend for a gluten-free version that’s just as fluffy.
- Dairy-Free: Swap unsalted butter and sour cream for coconut oil and dairy-free yogurt, ensuring everyone can enjoy this treat.
- Fruit Flavors: Replace strawberries with other berries like raspberries or blueberries for an equally refreshing mousse with a different flavor profile.
- Chocolate Layer: Add a delightful chocolate ganache layer between the cake and mousse to create a rich, decadent twist that chocolate lovers will adore.
- Add Zest: Incorporate lemon or orange zest into the cake batter for a bright citrus note that beautifully complements the strawberry flavors.
For an extra special touch, consider adding some finely chopped mint into the mousse. This will introduce a refreshing herbal element that elevates the dessert’s flavor. With these variations, your Strawberry Mousse Cake can be a new experience each time!
How to Store and Freeze Strawberry Mousse Cake
Room Temperature: Keep the cake at room temperature for up to 1 day, but ensure it’s covered to maintain its moisture and prevent drying out.
Fridge: Store leftover slices in an airtight container in the fridge for up to 3 days. This keeps the Strawberry Mousse Cake fresh and delicious while maintaining its creamy texture.
Freezer: For longer storage, wrap the cake tightly in plastic wrap, then aluminum foil, and freeze for up to 2 months. Thaw in the fridge overnight before serving.
Reheating: While this dessert is best served chilled, you can gently warm individual slices in the microwave for a few seconds if desired, though it’s delightful cold as well!
Make Ahead Options
These delightful Strawberry Mousse Cake layers can be prepped ahead, making it an ideal choice for those busy weeknights or gatherings. You can bake the white cake and store it in the fridge for up to 3 days tightly wrapped in plastic wrap to keep it moist. The strawberry mousse can also be prepared 24 hours in advance; just make sure to chill it properly to maintain that light, airy texture. When you’re ready to serve, simply assemble the cake by layering the mousse over the cooled cake, allowing it to set in the fridge for at least 4 hours. With these make-ahead options, you’ll enjoy a stunning dessert that’s just as delicious with minimal last-minute effort!
What to Serve with Strawberry Mousse Cake?
Elevate your Strawberry Mousse Cake experience by pairing it with complementary flavors and textures that complete the meal’s essence.
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Lemon Sorbet: The tartness of lemon sorbet cleanses the palate, offering a refreshing contrast to the sweet, creamy layers of the cake.
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Whipped Cream Topping: A dollop of lightly sweetened whipped cream adds an airy texture, enhancing the mousse’s luxurious feel and providing an extra layer of indulgence.
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Fresh Fruit Salad: A mix of seasonal fruits brightens the plate, adding a burst of freshness and color alongside your cake, inviting guests to indulge guilt-free.
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Chocolate-Covered Strawberries: Tie in the strawberry theme by serving these sweet bites, adding a rich chocolate flavor that enriches the overall dessert experience.
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Iced Tea or Lemonade: A glass of chilled iced tea or homemade lemonade complements the cake’s sweetness with a refreshing balance, making every bite a joy.
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Vanilla Ice Cream: The creaminess of vanilla ice cream pairs wonderfully with the mousse, allowing the flavors to meld and create a dreamy combination that melts in your mouth.
These delightful accompaniments will not only enhance your dessert but also create a memorable dining experience that’ll leave everyone raving about your culinary skills!
Expert Tips for Strawberry Mousse Cake
Use Room Temperature Ingredients: Ensure butter, eggs, and sour cream are at room temperature for a smoother batter and a fluffier cake.
Whip Cream to Stiff Peaks: When whipping the heavy cream, stop beating as soon as stiff peaks form to maintain the light texture of the mousse.
Avoid Overmixing: When combining the whipped cream with the strawberry mixture, fold gently and avoid overmixing to prevent the mousse from deflating.
Cool Completely: Allow the cake to cool completely before adding the mousse layer; this prevents melting and ensures a clean cut when serving your Strawberry Mousse Cake.
Chill for Best Results: Don’t rush the setting time; chilling the cake for at least 4 hours is key for a perfectly set mousse.
Strawberry Mousse Cake Recipe FAQs
What type of strawberries are best for the mousse?
Absolutely! Fresh strawberries tend to have a brighter flavor than frozen, but frozen strawberries work well too, especially if you’re off-season. If using frozen, ensure they are fully thawed before blending to achieve the smoothest puree.
How should I store my Strawberry Mousse Cake?
You can store the cake at room temperature for up to 1 day, but I recommend keeping it in the fridge for the best taste and texture. Place leftover slices in an airtight container in the fridge, where they’ll stay fresh for up to 3 days.
Can I freeze the Strawberry Mousse Cake?
Absolutely! To freeze, wrap the cake tightly in plastic wrap, followed by aluminum foil to prevent freezer burn. It will keep well for up to 2 months. When you’re ready to enjoy it, simply thaw it in the fridge overnight – this helps maintain its creamy mousse texture.
Why did my mousse not set properly?
Don’t worry! If your mousse didn’t set, it could be due to not allowing the strawberry mixture to cool completely before folding it into the whipped cream. It’s essential to let the gelatin mixture reach room temperature, or even cool in the fridge, to ensure it works effectively as a stabilizer.
Can I make this cake gluten-free?
Very! To make a gluten-free Strawberry Mousse Cake, substitute the cake flour with a 1:1 gluten-free flour blend that’s intended for baking. Just be sure to check that all your other ingredients, particularly the baking powder, are also gluten-free. Enjoy the deliciousness without worry!
Is it safe for pets?
No, it’s important to keep this cake away from pets! The sugar and heavy cream can be harmful to them. In addition, chocolate-based versions should certainly be avoided as chocolate is toxic to many pets. Always stick to pet-friendly treats for your furry friends!

Decadent Strawberry Mousse Cake That Everyone Will Love
Ingredients
Equipment
Method
- Preheat your oven to 350°F. Prepare a 9X9-inch square or circular pan by spraying it with nonstick baking spray, then line the bottom with parchment paper and spray again for easy release.
- In a medium mixing bowl, sift together the cake flour, baking powder, and salt.
- In a large mixing bowl, combine the unsalted butter, white sugar, and canola oil. Beat on high speed for about 3 minutes until the mixture is fluffy and light in color.
- Add the egg whites, vanilla extract, and sour cream (or Greek yogurt) to the butter mixture. Mix on medium speed until everything is smooth and well combined.
- Gradually add the sifted dry ingredients to the batter in thirds, mixing on low speed until just combined.
- Carefully pour the cake batter into your prepared pan, spreading it evenly.
- Place the cake in your preheated oven and bake for 35-40 minutes. Check with a toothpick.
- Let the cake sit in the hot pan for about 10 minutes before transferring it to a cooling rack. Allow it to cool completely.
- Blend the strawberries into a thin puree, strain it through a mesh sieve to remove the seeds.
- In a medium saucepan, combine the strawberry puree, sugar, and vanilla extract. Heat on medium until it starts to simmer.
- In a small bowl, mix the cold water with the powdered gelatin and let it bloom. Stir in the gelatin and heat gently until dissolved.
- Pour the strawberry mixture into a bowl and place it in the fridge until completely cool.
- Chill a metal bowl and whisk attachment, then add the heavy cream and beat until stiff peaks form.
- Gently fold in the ground freeze-dried strawberries, then combine with half of the cooled strawberry mixture.
- Fold in the remaining strawberry mixture until just combined.
- Clean and re-spray your pan. Add a piece of parchment paper, and spray again.
- Place the cooled white cake into the prepared pan. Top it with the strawberry mousse, smoothing the top.
- Refrigerate for at least 4 hours to allow the mousse to set properly.
- Once set, remove the cake from the pan, cut into slices, and garnish with fresh strawberries.







