There’s something magical about a cake that combines rich chocolate and fresh strawberries, isn’t there? Every bite of this Strawberry Mousse Cake takes me back to sunny afternoons spent with friends, indulging in sweet treats and laughter. This recipe is not only easy to whip up but also quick to assemble, making it a perfect option for any occasion. Whether you’re celebrating a birthday or simply want to treat yourself, this cake is sure to impress!
Why You’ll Love Strawberry Mousse Cake
- Fast
- Easy
- Giftable
- Crowd-pleasing
Ingredients
Here’s what you’ll need to create this delightful dessert:
- For the Cake:
- 1 ½ cups all-purpose flour
- 1 cup granulated sugar
- ½ cup unsweetened cocoa powder
- 1 ½ teaspoons baking powder
- 1 teaspoon baking soda
- ½ teaspoon salt
- 1 large egg
- ½ cup milk
- ¼ cup vegetable oil
- 1 teaspoon vanilla extract
- 1 cup boiling water
- For the Strawberry Mousse:
- 2 cups fresh strawberries, hulled and sliced
- ½ cup granulated sugar
- 1 tablespoon lemon juice
- 1 teaspoon unflavored gelatin
- 2 tablespoons cold water
- 1 cup heavy cream
- 1 teaspoon vanilla extract
- For the Topping:
- Fresh strawberries for garnish
- Whipped cream (optional)
How to Make Strawberry Mousse Cake
Let’s get started on this delectable dessert!
- Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan.
- In a large bowl, combine flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Add the egg, milk, vegetable oil, and vanilla extract to the dry ingredients. Mix until well combined.
- Gradually stir in the boiling water until the batter is smooth (the batter will be thin).
- Pour the batter into the prepared cake pan and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
- Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
Now, let’s make that luscious strawberry mousse!
- In a blender, combine the sliced strawberries, sugar, and lemon juice. Blend until smooth.
- In a small bowl, sprinkle gelatin over cold water and let it sit for 5 minutes to bloom.
- Heat the gelatin mixture in the microwave for 10-15 seconds until dissolved, then stir it into the strawberry mixture.
- In a separate bowl, whip the heavy cream and vanilla extract until soft peaks form.
- Gently fold the whipped cream into the strawberry mixture until no streaks remain.
Now, let’s assemble the cake!
- Once the cake has cooled completely, slice it in half horizontally to create two layers.
- Place one layer on a serving plate and spread half of the strawberry mousse on top.
- Add the second layer of cake and spread the remaining mousse on top.
- Chill the assembled cake in the refrigerator for at least 2 hours to set.
Finally, it’s time to serve!
- Before serving, garnish the top with fresh strawberries and whipped cream, if desired.
- Slice and enjoy your delicious strawberry mousse cake!
Substitutions & Additions
If you’re feeling adventurous, here are some ideas to customize your cake:
- Swap the cocoa powder for a gluten-free alternative if you need a gluten-free version.
- Add a hint of almond extract for a nutty twist.
- Mix in some crushed cookies or nuts between the layers for added texture.
Tips for Success
Here are a few tips to ensure your cake turns out perfectly:
- Make sure your ingredients are at room temperature for the best mixing results.
- Do not overmix the batter; just mix until combined to keep the cake light and fluffy.
- If you want to prepare ahead, the mousse can be made a day in advance and stored in the fridge.
How to Store Strawberry Mousse Cake
To keep your cake fresh:
- Store any leftovers in the refrigerator, covered, for up to 3 days.
- For longer storage, you can freeze the cake (without the mousse) for up to 2 months. Just thaw it in the fridge before serving.
FAQs
- Can I use frozen strawberries instead of fresh? Yes, but fresh strawberries give the best flavor and texture.
- How do I know when the cake is done baking? A toothpick inserted in the center should come out clean or with a few moist crumbs.
- Can I make this cake in advance? Absolutely! Just store it in the refrigerator until you’re ready to serve.
And there you have it! This Strawberry Mousse Cake is not only a treat for the taste buds but also a feast for the eyes. For more delicious recipes, check out Easy Homemade Frozen Butterbeer or Copycat Texas Roadhouse Butter Chicken Skillet for treats you will love!
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Strawberry Mousse Cake

Ingredients
Equipment
Method
- Step 1: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan.
- Step 2: In a large bowl, combine flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Step 3: Add the egg, milk, vegetable oil, and vanilla extract to the dry ingredients. Mix until well combined.
- Step 4: Gradually stir in the boiling water until the batter is smooth (the batter will be thin).
- Step 5: Pour the batter into the prepared cake pan and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
- Step 6: Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
- Step 7: In a blender, combine the sliced strawberries, sugar, and lemon juice. Blend until smooth.
- Step 8: In a small bowl, sprinkle gelatin over cold water and let it sit for 5 minutes to bloom.
- Step 9: Heat the gelatin mixture in the microwave for 10-15 seconds until dissolved, then stir it into the strawberry mixture.
- Step 10: In a separate bowl, whip the heavy cream and vanilla extract until soft peaks form.
- Step 11: Gently fold the whipped cream into the strawberry mixture until no streaks remain.
- Step 12: Once the cake has cooled completely, slice it in half horizontally to create two layers.
- Step 13: Place one layer on a serving plate and spread half of the strawberry mousse on top.
- Step 14: Add the second layer of cake and spread the remaining mousse on top.
- Step 15: Chill the assembled cake in the refrigerator for at least 2 hours to set.
- Step 16: Before serving, garnish the top with fresh strawberries and whipped cream, if desired.
- Step 17: Slice and enjoy your delicious strawberry mousse cake!
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