Raspberry Marshmallow Mousse Cake

Tart raspberries and sweet marshmallows find perfect balance in this cake. The marshmallow isn't just a sweetener; when melted, it creates a silky, elastic base for the mousse that holds up beautifully between the cake layers, hugging the fresh fruit.
🕒 Prep Time 20 mins
🍳 Cook Time 30 mins
Total Time 2 hrs 50 mins
🍽️ Servings 8 servings
🔥 Calories 340 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • 9-inch Round Pan
  • Double Boiler
  • Spatula

Allergen Information

⚠️ Wheat
⚠️ Egg
⚠️ Milk

Instructions

1

Preheat oven to 350°F (180°C). Beat eggs and sugar until pale. Whisk in butter, milk, and vanilla.

Tip: Dissolving the sugar into the eggs creates a stable foam.
2

Fold in flour, salt, and baking powder. Bake for 25-30 minutes. Cool completely.

Tip: Salt balances the sweetness of the upcoming marshmallow filling.
3

Melt the marshmallows in a double boiler. Whip the cream with confectioners' sugar. Fold the lukewarm marshmallow into the cream.

Tip: Ensure the marshmallows cool to body temperature so they don't deflate the cream.
4

Halve the cake. Spread filling, dot with raspberries, and top with the second layer. Frost the outside.

Tip: The tartness of the berries cuts through the rich cream.
5

Decorate with remaining berries. Chill for 2 hours to set.

Tip: The gelatin in the marshmallows needs time to firm up.

Recipe FAQ

Can I use frozen raspberries?
For the batter, yes. For the filling/decoration, fresh is best as frozen berries release too much water and can make the cream runny.
The marshmallows hardened too fast.
Pop them back over the steam or in the microwave for a few seconds to loosen before mixing with the cream.

Ingredients

  • 1 1/2 cups All-Purpose Flour
  • 3/4 cup Granulated Sugar
  • 4 large Eggs
  • 7 tbsp Unsalted Butter, melted
  • 1/2 cup Milk
  • 1 tsp Baking Powder
  • 1 tsp Vanilla Extract
  • 3 cups Mini Marshmallows
  • 2 1/2 cups Fresh Raspberries
  • 1 cup Heavy Cream
  • 1/2 cup Confectioners' Sugar
  • 1 pinch Salt