Tropical Lime & Coconut Mousse Cake

Two iconic tropical flavors, lime and coconut, meet in this recipe. The richness of coconut softens the sharp acidity of the lime, creating a balanced, exotic flavor profile. The neutral sponge cake lets the character of the mousse shine. It's like the first day of a beach vacation: sunny and promising.
🕒 Prep Time 30 mins
Total Time 4 hrs 30 mins
🍽️ Servings 8 servings
🔥 Calories 350 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • Springform Pan
  • Whisk
  • Zester
  • Small Bowl for Gelatin

Allergen Information

⚠️ Milk
⚠️ Wheat

Instructions

1

Zest the limes, then squeeze out their juice.

Tip: The zest contains essential oils, the juice contains acids. You need both for the full flavor experience.
2

Sprinkle the gelatin over the water, let sit for 5 mins, then gently warm until liquid and clear. Let it cool to lukewarm.

Tip: If you pour it hot into the cream, the heat will deflate the whipped cream.
3

Whip the cold heavy cream with the sugar until stiff peaks form.

Tip: Cold tools (bowl, whisk) help stabilize the fat crystals for a firmer foam.
4

While mixing gently, drizzle in the lime juice, zest, and lukewarm gelatin. Fold in half of the shredded coconut.

Tip: Add the acidic lime juice slowly to prevent curdling the cream proteins.
5

Place the sponge cake in the mold, pour the mousse over it, and sprinkle the remaining coconut on top.

Tip: You can brush the sponge with a little lime syrup for extra moisture.
6

Refrigerate for at least 4 hours to set.

Tip: The coconut absorbs moisture during the rest, becoming tender.

Recipe FAQ

Can I use coconut cream?
Yes, for an even more intense flavor. Reduce the sugar slightly if you do.
What if the gelatin clumps?
Gently reheat the mixture (or a small part of it) over steam until dissolved, then cool back down.

Ingredients

  • 1 pc Sponge Cake Layer (9-inch, store-bought or homemade)
  • 1 1/2 cups Shredded Coconut
  • 3 pcs Limes
  • 1/2 cup Granulated Sugar
  • 1 1/4 cups Cold Heavy Cream
  • 1.5 packets Unflavored Gelatin (approx. 4 tsp)
  • 1/4 cup Water