Raspberry Jello Mouse Cake Recipe

You can also get as creative as you want with this, changing up the jello and fruit-the possibilities and endless!

I love that this jello cake is potluck and party friendly

Ingredients for Raspberry Jello Mousse:

6 oz package raspberry jello

8 oz tub cool whip, thawed in the refrigerator


Ingredients for the Cake:

4 large eggs, room temperature

½ cup granulated sugar

¼ tsp vanilla

½ cup all-purpose flour


For the Syrup:

½ cup warm water

2 tbsp granulated sugar

1 tsp lemon juice


Topping ingredients:

3 oz package raspberry jello

6 oz package raspberries



1-      Start making the Jello Mousse:

In a large mixing bowl, combine 6 oz jello with 2 cups boiling water and stir until dissolved then add 1 cup cold water (this is half of the cold water the package calls for). Let jello sit at room temp until it is just starting to set while you work on the cake. Note: if you need to speed set jello, you can refrigerate it for 10-15 minutes at the end or until the jello is syrupy and soft set.

2-      How to make the cake and simple syrup:

Preheat Oven to 350 degree F. Line the bottom of a 13*9 glass baking dish with parchment paper. (don’t grease the sides)

1. Beat 4 large eggs with the whisk attachment for 1 min on high speed then with the mixer on, add ½ cup sugar and continue beating on high speed for 5 minutes. Your mixture will be thick and fluffy. Fold in ¼ tsp vanilla.

2. Sift in ½ cup flour in thirds into the batter, folding it in between each addition. When mixing, scrape the bottom of the bowl to ensure you don’t have pockets of flour hiding at the bottom. Fold until no streaks of flour remain, do not over-mix or you will deflate the batter. Spread batter evenly into lined glass dish and bake at 350 degree F for 18-20 min, or until top is golden brown & springs back when poked slightly.

3. Remove from oven, cut away from edges, invert onto a cooling rack and peel back the parchment paper. (note: let cake sit on top of the peeled back parchment paper to cool , that sometimes it sticks to a cooling rack and can be hard to pry off after it cools down). Rinse and dry the baking dish then return cooled cake back to the pan.

4. Combine the syrup ingredients:1/2 cup warm water, 2 tbsp granulated sugar and 1 tsp lemon juice and set aside to cool to room temp. Brush the top of the cooked cake evenly with the syrup.

          3- Finish the Jello Mousse and Topping:

  1. Once Jello is starting to thicken and has a slight wiggle to it, beat in 8 oz cool whip. Tip: if your mousse is watery, you should refrigerate it for 10-15 minutes until it’s slightly thickened, but keep an eye on it so it doesn’t set too much or it will be hard to spread.
  2. Pour the mousse over the cake layer and spread evenly. Top with raspberries, pushing them down slightly into the mousse. Refrigerate 1 hour or until mousse layer is set. Meanwhile, start making your jello topping.
  3. In a large measuring cup, combine 3 oz jello with 1 cup boiling water then stir until gelatine is dissolved and add ½ cup cold water, let cool to room temp.(tip: never pour warm jello over the mousse or you’ll end up with a creamy layer on top) also Pour jello over the back of a spoon into the pyrex dish and refrigerate another hour or until fully set.

Prep time: 2 hours 40 min   Cook time: 20 min         Serving: 12-16 servings