Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Strawberry Mousse Cake Filling Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 112 reviews
  • Author: Hannah
  • Prep Time: 10 minutes
  • Cook Time: 0 minutes
  • Total Time: 2 hours 10 minutes
  • Yield: 3 cups 1x
  • Category: Filling
  • Method: No-Cook
  • Cuisine: American
  • Diet: Vegetarian

Description

A light and airy strawberry mousse cake filling made with white chocolate, freeze-dried strawberry powder, and whipped cream. This mousse is perfect for filling cakes or cupcakes, providing a vibrant strawberry flavor and creamy texture. It can be made ahead of time and stored chilled to maintain its structure.


Ingredients

Scale

Strawberry Mousse

  • 1 cup (180g) good quality white chocolate chips
  • 1 1/3 cups (320g) heavy cream or heavy whipping cream, cold, divided
  • 1/2 cup (56g) freeze-dried strawberry powder
  • 1/4 cup (30g) powdered sugar
  • 1 tsp (4g) vanilla extract or vanilla bean paste
  • Pinch fine salt (less than 1/8 tsp)
  • Red gel food coloring (optional)

Instructions

  1. Prepare white chocolate mixture: Place 1 cup white chocolate chips and 1/3 cup heavy cream into a medium heat-proof bowl. Microwave for 45-60 seconds or use a double boiler until the white chocolate is fully melted. Stir gently until smooth, then set aside to cool slightly.
  2. Whip strawberry cream: In a large bowl or stand mixer with whisk attachment, combine 1 cup heavy cream, freeze-dried strawberry powder, powdered sugar, vanilla extract, and a pinch of salt. Optionally add a drop of red gel food coloring for color. Whip on medium-high speed until thick peaks form and the cream holds its shape, about 1-2 minutes.
  3. Fold mixtures together: Gently fold half of the whipped strawberry cream into the melted white chocolate mixture using a rubber spatula. Carefully fold in the remaining strawberry whipped cream until just combined, taking care not to deflate the mousse.
  4. Chill the mousse: Cover the bowl with plastic wrap and refrigerate for at least 2 hours to allow the mousse to set and thicken before using as cake filling.

Notes

  • This recipe yields about 3 cups of strawberry mousse filling and can be doubled as needed.
  • Chill your mixing bowl and whisk attachment beforehand to speed up and improve whipping of the cream.
  • Use good-quality white chocolate (chips, bars, or wafers) but avoid white candy melts for best texture and flavor.
  • Heavy whipping cream with high fat content is essential for properly whipped mousse.
  • Do not overwhip the strawberry cream or it will turn into butter.
  • Keep the mousse chilled at all times to maintain structure and prevent it from becoming too soft.
  • When filling cakes, pipe a ring of buttercream around the edges to keep the mousse in place.
  • The mousse can be made 1-2 days in advance and stored covered in the refrigerator.
  • Once assembled in cakes or cupcakes, keep refrigerated until serving.

Nutrition

  • Serving Size: 1/4 cup (about 60g)
  • Calories: 180
  • Sugar: 16g
  • Sodium: 30mg
  • Fat: 13g
  • Saturated Fat: 8g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 45mg