Easy No-Bake Mango Mousse Cake

Quick Overview

This mango mousse cake features a buttery graham cracker crust topped with a silky, airy mango mousse layer and a glossy mango mirror glaze. It offers a perfect balance of tropical sweetness and rich creaminess without requiring any baking time.

Home cooks love this dessert because it looks bakery-quality while using straightforward, accessible techniques. Preparing the components takes very little active effort, making it ideal for summer gatherings, dinner parties, or weekend treats.

• Prep Time: 30 minutes
• Chill Time: 4 hours
• Total Time: 4 hours 30 minutes
• Servings: 8 slices
• Calories: 320 kcal per slice

Ingredients

For the Base

• 150 g graham crackers (about 10 full sheets), finely crushed
• 60 g unsalted butter, melted
• 1 tbsp granulated sugar

For the Mango Mousse

• 300 g fresh mango puree (from about 2 large ripe mangoes)
• 300 ml heavy whipping cream, cold
• 100 g powdered sugar
• 10 g powdered unflavored gelatin
• 45 ml cold water
• 1 tbsp lemon juice

For the Mango Glaze

• 150 g fresh mango puree
• 5 g powdered unflavored gelatin
• 30 ml cold water
• 1 tbsp sugar

How to Make Mango Mousse Cake

1. Mix crushed graham crackers, melted butter, and granulated sugar in a bowl until the texture resembles wet sand.
2. Press the crumb mixture firmly into the bottom of an 8-inch springform pan lined with parchment paper.
3. Chill the crust in the refrigerator for 15 minutes while preparing the filling.
4. Sprinkle 10 grams of gelatin over 45 ml of cold water in a small bowl and let it bloom for 5 minutes.
5. Heat 100 grams of mango puree in a small saucepan over medium heat until warm, then stir in the bloomed gelatin until completely dissolved.
6. Whisk the warm mango mixture into the remaining cold mango puree and lemon juice until smooth.
7. Whip cold heavy cream and powdered sugar in a large bowl on high speed for 3 minutes until medium peaks form.
8. Gently fold the mango puree into the whipped cream in three batches using a silicone spatula until fully combined.
9. Pour the mousse mixture over the chilled crust, smooth the top with a spatula, and refrigerate for 2 hours until set.
10. Bloom 5 grams of gelatin in 30 ml cold water for glaze, melt it in warm mango puree mixed with sugar, allow it to cool to room temperature, and pour over the set mousse layer.
11. Chill the entire cake in the refrigerator for at least 2 hours before running a thin knife around the edge and releasing the springform pan.

Pro Tip

Always make sure your warm mango and gelatin mixture cools down close to room temperature before folding it into the whipped cream. If you add hot mango puree to cold whipped cream, the heat will instantly melt the fat in the cream, leaving you with a liquid mixture that will not set properly into a fluffy mousse.

Serving & Storage

Serve this cake chilled directly from the refrigerator. For clean slices, wipe a sharp knife with a hot, damp cloth between every cut. Garnish individual plates with fresh mango cubes, mint leaves, or a dollop of extra whipped cream.

Keep the cake stored in the refrigerator in an airtight container or covered loosely with plastic wrap. It maintains its fresh texture and flavor for up to 4 days.

This recipe does not freeze well, as the gelatin structure breaks down when thawed, causing the mousse layer to release liquid and lose its silky texture.

FAQs

Can I use frozen mangoes to make the puree?

Yes, thaw frozen mango chunks completely and blend them until smooth before measuring.

How long does this cake last in the fridge?

The cake stays fresh and retains its shape in the refrigerator for up to 4 days.

Why did my mango mousse fail to set properly?

The mousse usually fails to set if the gelatin was not fully dissolved in warm liquid or if the whipped cream was under-whipped before folding.