Strawberry Mousse Cake Filling

This Strawberry Mousse Cake Filling is light, fluffy, and bursting with real strawberry flavor. Made with just six simple ingredients, it’s perfect for filling cakes, cupcakes, and macarons. The combination of freeze-dried strawberries and white chocolate creates a smooth, luscious texture that pairs beautifully with a variety of desserts.

Why You’ll Love This Recipe

• Light and airy – A perfect mousse texture that’s smooth and creamy
• Bursting with strawberry flavor – Made with real freeze-dried strawberries
• Versatile – Works great as a filling for cakes, cupcakes, or even macarons
• Easy to make – Just a few ingredients and a simple method
• No gelatin required – Thickened naturally with white chocolate

Ingredients

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

• ½ cup freeze-dried strawberry powder
• 1 ⅓ cups heavy cream or heavy whipping cream
• ¼ cup powdered sugar
• 1 cup good-quality white chocolate chips
• 1 teaspoon vanilla extract
• 1 pinch fine salt
• (Optional) Red gel food coloring for a more vibrant pink hue

Directions

Step 1: Melt the White Chocolate

1. In a microwave-safe bowl, melt the white chocolate chips in 15-second intervals, stirring after each until smooth.
2. Let the melted chocolate cool slightly while you prepare the whipped cream.

Step 2: Whip the Cream

1. In a stand mixer fitted with a whisk attachment (or using a hand mixer), beat the heavy cream, powdered sugar, vanilla extract, and salt on medium-high speed until soft peaks form.

Step 3: Add the Strawberry Flavor

1. Gently fold in the freeze-dried strawberry powder until fully incorporated.
2. If using, add a drop of red gel food coloring for a deeper pink color.

Step 4: Incorporate the White Chocolate

1. Slowly drizzle in the slightly cooled melted white chocolate while continuously folding to maintain the mousse’s light texture.
2. Continue folding until fully combined and smooth.

Step 5: Chill the Mousse

1. Transfer the strawberry mousse to a bowl, cover with plastic wrap, and refrigerate for at least 2 hours to set before using as a cake filling.

Servings and Timing

• Servings: Fills a 3-layer 8-inch cake or 12 cupcakes
• Preparation Time: 10 minutes
• Chilling Time: 2 hours
• Total Time: 2 hours 10 minutes

Variations

• Dairy-Free Version: Use coconut cream and dairy-free white chocolate.
• Extra Fruity: Add fresh diced strawberries for extra texture.
• Chocolate Strawberry Mousse: Mix in 2 tablespoons of cocoa powder for a chocolate twist.
• Lemon Strawberry Mousse: Add 1 teaspoon of lemon zest for a citrusy brightness.

Storage/Reheating

• Refrigeration: Store in an airtight container in the refrigerator for up to 3 days.
• Freezing: Freeze for up to 1 month. Thaw in the fridge before using.
• Reheating: Not needed—serve chilled for best texture.

FAQs

Can I use fresh strawberries instead of freeze-dried powder?

No, fresh strawberries add too much moisture and will affect the mousse’s texture.

How do I prevent the mousse from being too runny?

Make sure to whip the cream until soft peaks form and let the mousse chill for at least 2 hours before using.

Can I use this mousse as a frosting?

It works best as a filling, but can be piped onto cupcakes if chilled properly.

What can I pair this filling with?

It goes well with vanilla, chocolate, or lemon cakes and pairs beautifully with macarons.

How do I make this mousse thicker?

Use slightly more melted white chocolate or chill it longer before using.

Can I use milk chocolate instead of white chocolate?

Yes, but white chocolate enhances the strawberry flavor best.

Can I make this mousse ahead of time?

Yes, it can be made 1–2 days in advance and stored in the fridge.

What if I don’t have a stand mixer?

A hand mixer works just as well for whipping the cream.

Can I use granulated sugar instead of powdered sugar?

Powdered sugar is best as it dissolves easily into the mousse.

Why is my mousse grainy?

The white chocolate may have cooled too much before mixing in. Try gently reheating the mixture to smooth it out.

Conclusion

This Strawberry Mousse Cake Filling is a simple yet elegant addition to any dessert. With its smooth, airy texture and vibrant strawberry flavor, it’s perfect for layering between cakes, filling cupcakes, or adding a fruity twist to macarons. Try it today and enjoy a light, luscious treat!

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