Blueberry Mousse Cake: A Dreamy Dessert You’ll Love

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August 28, 2025

blueberry mousse cake layered with sponge and berries
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Before diving into the recipe, let me tell you why blueberry mousse cake holds a special place in my heart. I remember the first time I baked it for a summer family gathering; the sweet aroma of blueberries filled the kitchen, and every bite tasted like sunshine on a plate.

The balance of creamy mousse, airy sponge, and fruity topping makes it one of those desserts that everyone asks for again and again. In this article, we’ll cover everything from its story to step-by-step instructions, variations, tips, and serving ideas to make your blueberry mousse cake truly spectacular.

Blueberry Mousse Cake Story

A Sweet Memory with Blueberry Mousse Cake

When I think of blueberry mousse cake, I think of bright afternoons when family and friends gather around the table, sharing laughter and stories.

This cake isn’t just about flavor it’s about creating moments. The first time I made it, I used fresh blueberries I had picked from a local farm. Their natural sweetness blended beautifully with the silky mousse, making the dessert both refreshing and indulgent.

I learned quickly that blueberry mousse cake is more than a recipe it’s an experience, one that invites comfort and joy.

The cake combines three irresistible layers: a light sponge base, a fluffy blueberry mousse, and a glossy blueberry topping. Each layer complements the other, creating a dessert that feels both luxurious and approachable.

The mousse itself is the star, whipped until airy and folded with blueberry puree, giving the cake its signature fruity charm. It’s a dessert that looks elegant yet is simple enough to make at home, which is why I often prepare it for birthdays and holiday dinners.

More about Mousse in the post.

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Blueberry Mousse Cake: A Dreamy Dessert You’ll Love

slice of blueberry mousse cake served with berries

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A light and airy blueberry mousse cake with sponge base, fruity mousse, and whipped topping.

  • Author: Emily
  • Prep Time: 1 hr 10 mins
  • Cook Time: 20 minutes
  • Total Time: 7 hrs 30 minutes
  • Yield: 10 servings 1x
  • Category: Dessert
  • Cuisine: American

Ingredients

Scale
  • Cake Layer: 120 g cake flour,
  • ½ tsp baking powder,
  • ½ tsp baking soda,
  • ¼ tsp salt,
  • 75 g sugar,
  • 70 g milk,
  • 60 g oil,
  • 1 egg,
  • 1 tsp vanilla,
  • 24 blueberries
    Mousse:
  • 2 tbsp gelatin,
  • 100 g water,
  • 400 g cream,
  • 40 g powdered sugar,
  • 600 g blueberries
    Topping:
  • 100 g cream,
  • 1 tbsp powdered sugar,
  • ½ tsp vanilla, fresh berries

Instructions

  • Bake cake layer until golden.
  • Bloom gelatin, puree blueberries, whip cream with sugar.
  • Combine puree, cream, and gelatin.
  • Spread mousse on cooled cake, chill 4 hours.
  • Top with whipped cream and fresh berries.

Notes

Chill overnight for best results.
Can substitute agar for gelatin.
Use fresh or thawed frozen blueberries.

Nutrition

  • Serving Size: 1 serving
  • Calories: 365
  • Sugar: 20g
  • Sodium: 161mg
  • Fat: 25g
  • Saturated Fat: 12g
  • Unsaturated Fat: 3g
  • Trans Fat: 0.03g
  • Carbohydrates: 32g
  • Fiber: 2g
  • Protein: 5g
  • Cholesterol: 74mg

Why Blueberry Mousse Cake Is a Must-Try

What makes blueberry mousse cake special is its versatility. You can serve it chilled on a hot day or as a festive centerpiece for celebrations. It’s also customizable you can adjust the sweetness, add a cream cheese layer, or even make it gluten-free by switching the sponge base.

No matter how you adapt it, the essence of the cake remains the same: light, creamy, and bursting with blueberry flavor. If you’re looking for a dessert that wows guests without overwhelming your kitchen schedule, this cake is the perfect choice.

If you enjoy recipes that feel comforting yet exciting, this one fits perfectly alongside other treats like my buttermilk scones or the fluffy Gluten-Free Cheese and Marmite Scones

Ingredients and Preparation for Blueberry Mousse Cake

blueberry mousse cake ingredients flat lay

Gathering the Ingredients

Making blueberry mousse cake starts with simple, wholesome ingredients. For the blueberry cake layer, you’ll need 120 g cake flour, ½ teaspoon baking powder, ½ teaspoon baking soda, and ¼ teaspoon salt.

Combine these dry ingredients with 75 g sugar, 70 g milk, 60 g oil, one large egg, and a teaspoon of vanilla extract. If you’d like a fruity surprise in each slice, fold in a handful of fresh or frozen blueberries.

The star of the dessert is, of course, the blueberry mousse. To prepare it, you’ll need 2 tablespoons of gelatin powder, bloomed in 100 g cold water. Whip 400 g cold cream with 40 g powdered sugar until soft peaks form.

Blend 600 g fresh or thawed blueberries into a smooth puree, then gently fold it into the cream mixture along with the gelatin. This step creates the light, airy texture that makes blueberry mousse cake unforgettable.

For the topping, keep it simple: whip 100 g cold cream with a spoonful of powdered sugar and half a teaspoon of vanilla extract. Fresh berries make a beautiful finishing touch.

For the blueberry cake layer, you’ll need:

  • 120 g cake flour
  • ½ teaspoon baking powder
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
  • 75 g granulated sugar
  • 70 g milk (dairy or non-dairy)
  • 60 g light oil (canola works well)
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 24 blueberries (fresh or frozen, optional)

For the blueberry mousse:

  • 2 tablespoons gelatin powder
  • 100 g cold water
  • 400 g whipping cream, cold
  • 40 g powdered sugar
  • 600 g blueberries (fresh or thawed frozen)

For the toppings:

  • 100 g whipping cream, cold
  • 1 tablespoon powdered sugar
  • ½ teaspoon vanilla extract
  • fresh berries

Step-by-Step Preparation

blueberry mousse cake sponge layer cooling
  1. Bake the sponge layer by mixing dry and wet ingredients, folding gently, and adding optional blueberries. Bake until golden, then cool completely.
  2. For the mousse, bloom gelatin in water. Whip cream with sugar to soft peaks. Puree the blueberries, strain if smoother texture is desired, then fold gently with cream and dissolved gelatin.
  3. Spread mousse over the cooled cake layer and chill for at least 4 hours.
  4. Whip cream topping, spread or pipe over the set mousse, and finish with fresh berries.

Serve them alongside drink-based treats like Strawberry Daiquiri Mocktail Recipes for a refreshing dessert spread.

Tips and Variations for Blueberry Mousse Cake

Pro Tips for the Perfect Cake

Getting blueberry mousse cake just right depends on a few small details. First, always bloom the gelatin properly. Stirring it into cold water and letting it sit for a few minutes before melting ensures a smooth, lump-free mousse.

When whipping the cream, aim for soft peaks; overwhipping makes it harder to fold into the blueberry puree. If you’d like a silky finish, strain the blueberry puree before mixing it in to remove skins and seeds.

Chilling time is another key factor. For a firm, sliceable cake, refrigerate at least four hours, though overnight is best. When removing the cake from the pan, run a warm knife around the edges to keep the layers neat.

Finally, garnish just before serving so the whipped cream topping and berries look fresh and vibrant. These small steps make your blueberry mousse cake bakery-worthy.

folding blueberry mousse mixture
  • Bloom gelatin in cold water first, then melt gently.
  • Whip cream only to soft peaks so it folds smoothly with blueberry puree.
  • Strain puree for a silky texture.
  • Chill overnight for the best set and easy slicing.
  • Use a warm knife to release clean slices.

Creative Variations

  • Add a cream cheese layer for cheesecake-like richness.
  • Make it gluten-free with an almond flour crust.
  • Use coconut cream for a dairy-free twist.
  • Switch fruits raspberries for tartness, strawberries for sweetness.
  • Top with edible flowers or sugared berries for a festive look.

One of the best things about blueberry mousse cake is its flexibility. For a richer flavor, add a cream cheese layer between the sponge and mousse almost like a cheesecake-mousse hybrid. If you’re gluten-free, swap the sponge base for an almond flour crust.

Looking for a dairy-free option? Use coconut cream instead of whipping cream, which adds a tropical twist.

You can also experiment with other berries. Raspberry mousse gives a tangy edge, while strawberry mousse offers a softer sweetness. For a more decadent dessert, drizzle melted white chocolate over the whipped cream topping.

If you’re making this cake for a festive event, consider decorating with sugared blueberries or edible flowers for a stunning presentation.

With just a few adjustments, your blueberry mousse cake can become entirely your own, tailored to different tastes, dietary needs, or special occasions.

Serving Blueberry Mousse Cake

Serve chilled. For clean slices, dip your knife in hot water before cutting. This dessert pairs beautifully with coffee, tea, or sparkling wine. Garnish with mint leaves or a light sugar dust for an elegant touch.

slice of blueberry mousse cake served with berries

Storage Tips

Refrigerate in an airtight container for up to three days. Freeze tightly wrapped for up to one month, though mousse may lose some airiness.

FAQs

Can I make blueberry mousse cake without gelatin?

Yes, agar-agar works as a vegetarian substitute, but it creates a firmer texture

Can I use frozen blueberries?

Yes, thaw and drain them first to avoid excess water.

How long does it need to chill?

At least 4 hours, but overnight chilling gives the best structure.

Can I prepare it in advance for a party?

Yes, bake the sponge a day ahead, then add mousse and toppings before chilling overnight.

Conclusion

Blueberry mousse cake blends airy mousse, juicy berries, and tender sponge into a dessert that feels luxurious yet approachable. Whether you keep it classic or adapt it with variations, it will always earn compliments at the table.

From birthdays to casual brunches, this cake proves that simple ingredients can create something extraordinary.

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