Matcha Mousse Cake: Easy No-Bake Recipe

Matcha mousse cake is a stunning Japanese-inspired dessert featuring a light, airy mousse made with white chocolate, cream, and ceremonial-grade matcha powder, set over a crisp cookie crust. The bitterness of the matcha balances the sweetness of the white chocolate, creating a sophisticated treat that’s surprisingly simple to make at home. This no-bake recipe requires no oven, making it perfect for warm days or when you want an impressive dessert without much fuss.

Ingredients

1 1/2 cups (150 g) graham cracker crumbs (about 10 full sheets)
5 tbsp (70 g) unsalted butter, melted
2 tbsp (25 g) granulated sugar
2 tsp (4 g) matcha powder (ceremonial grade), plus extra for dusting
1 1/2 cups (360 ml) heavy cream, cold
8 oz (225 g) white chocolate, finely chopped
1/2 cup (120 ml) whole milk
1 tbsp (15 ml) unflavored gelatin powder (about 1 packet)
3 tbsp (45 ml) cold water
1/4 cup (50 g) granulated sugar
1 tsp vanilla extract

Instructions

Prepare the crust: In a medium bowl, combine the graham cracker crumbs, 2 tbsp sugar, and melted butter. Mix until the crumbs are evenly moistened. Press the mixture firmly into the bottom of a 9-inch (23 cm) springform pan. Place in the refrigerator while you make the mousse.
Bloom the gelatin: In a small bowl, sprinkle the gelatin over the cold water. Let it sit for 5–10 minutes until it becomes spongy.
Melt the white chocolate: Place the chopped white chocolate in a heatproof bowl. Set over a pot of simmering water (double boiler) and stir until melted and smooth. Remove from heat and set aside.
Heat the milk and dissolve gelatin: In a small saucepan, warm the milk over medium heat until steaming (do not boil). Remove from heat, add the bloomed gelatin, and stir until completely dissolved. Pour this mixture into the melted white chocolate and whisk until smooth. Set aside.
Dissolve matcha: In a small bowl, whisk the matcha powder with 2 tablespoons of the warm milk mixture (or a little warm water) until no lumps remain. Add this paste to the white chocolate mixture and stir until fully incorporated.
Whip the cream: In a large bowl, beat the cold heavy cream with the remaining 1/4 cup sugar and vanilla extract until soft peaks form (the cream should hold its shape but still be slightly droopy).
Fold the mixtures: Gently fold the matcha-white chocolate mixture into the whipped cream in three additions. Use a spatula and fold carefully to keep the mousse airy.
Assemble the cake: Pour the mousse over the chilled crust. Smooth the top with an offset spatula. Tap the pan gently on the counter to release any air bubbles.
Chill: Refrigerate the cake for at least 4 hours, or until set (it should be firm to the touch). For best results, chill overnight.
Serve: Run a thin knife around the edge of the pan before releasing the springform. Dust the top with a little extra matcha powder just before serving.

Tips

Use ceremonial-grade matcha: Culinary grade works, but it may be more bitter and less vibrant. Ceremonial grade gives a smoother flavor and brighter green color.
Don’t over-whip the cream: If you whip to stiff peaks, the mousse will be dense rather than light. Stop at soft peaks that still droop slightly.
Make sure the gelatin is fully dissolved: If you see small granules in the milk, the mousse may not set evenly. Stir until the mixture is completely clear before adding to the chocolate.
Chill time is essential: Rushing the chilling step will result in a runny mousse. Allow at least 4 hours, or overnight for a cleaner slice.

Serving Suggestions

Serve slices chilled with a dollop of lightly sweetened whipped cream and a few fresh raspberries or strawberries. The tartness of the berries contrasts beautifully with the creamy mousse. A small cup of hot green tea or coffee pairs well.

Variations

Chocolate crust: Replace graham crackers with chocolate wafer cookies for a deeper flavor.
Citrus twist: Add 1 teaspoon of yuzu juice or lemon zest to the mousse for a bright, tangy note.
Vegan option: Use coconut cream (chilled, solid part only) instead of heavy cream, and a vegan white chocolate. Replace gelatin with agar-agar (use 1 tsp agar powder, dissolved in the milk, and bring to a boil).
Matcha layer cake: Make two batches and layer with a thin sponge cake for a more elaborate dessert.

Storage and Reheating

Store the matcha mousse cake in the refrigerator, covered, for up to 3 days. It is best enjoyed cold, so no reheating is needed. If you must keep it longer, you can freeze the cake (without the matcha dusting) for up to 1 month. Thaw in the refrigerator overnight before serving. Note that freezing may slightly alter the texture of the mousse.

Frequently Asked Questions

Can I use gelatin sheets instead of powder? Yes. Use 3 sheets of gelatin (about 2.5 g each). Soak them in cold water for 5 minutes, then squeeze out excess water and dissolve in the warm milk.

Why is my mousse not setting? The gelatin may not have been fully dissolved, or the cream was over-whipped. Also, ensure the cake has chilled for at least 4 hours. If it still doesn’t set, you can add a bit more gelatin next time.

Can I make this without gelatin? Yes, but the mousse will be softer and more like a mousse dessert rather than a sliceable cake. You can add 1/2 cup (120 ml) of mascarpone cheese to help stabilize it, but it will change the texture.

What if I don’t have a springform pan? You can use a regular 9-inch cake pan lined with plastic wrap for easy removal, or even individual glasses for a parfait-style dessert.

How do I get clean slices? Use a sharp knife dipped in hot water, wipe it dry, and slice. Clean the knife between cuts for neat edges.

Can I use milk chocolate instead of white? Yes, but the matcha flavor will be less pronounced, and the color will be muddy. If you do, reduce the sugar to 2 tablespoons, as milk chocolate is sweeter.

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