Description
This vibrant layer cake combines a moist, sour cream-infused sponge with a silky mango curd filling and luxurious white chocolate buttercream. It is a foolproof tropical masterpiece perfect for any birthday celebration.
Ingredients
- 2 cups mango puree
- 1/2 cup granulated sugar
- 3 large eggs
- 2 large egg yolks
- 1/4 cup lemon juice
- 4 tablespoons unsalted butter, cold
- 2 cups all-purpose flour
- 1 tablespoon baking powder
- 1/2 teaspoon sea salt
- 4 large eggs
- 1 1/2 cups granulated sugar
- 1 cup sour cream
- 1/2 cup neutral vegetable oil
- 1 teaspoon vanilla extract
- 1/2 cup white chocolate, melted
- 4 large egg whites
- 1/2 cup water
- 1/4 cup lime juice
Instructions
- Cook fruit curd. Whisk mango puree, lemon juice, sugar, eggs, and yolks in a saucepan over medium heat until steaming, then whisk in butter until thickened.
- Chill the filling. Strain the curd through a fine-mesh sieve, place the bowl in an ice bath to cool, then refrigerate for four hours covered with plastic wrap.
- Mix cake batter. Preheat oven to 325°F and prepare a nine-inch pan, then beat eggs and sugar for eight minutes until thick and ribbon-like.
- Bake the sponge. Whisk sour cream, oil, and vanilla into the egg mixture, fold in dry ingredients, and bake for 75 to 80 minutes.
- Prepare white buttercream. Whisk sugar, egg whites, and water over a simmering water bath to 140°F, then whip in a stand mixer until stiff, glossy peaks form.
- Assemble cake layers. Slice the sponge into four layers, brush with lime syrup, pipe a buttercream border, and fill with chilled mango curd.
- Stack and coat. Repeat layering until the fourth cake layer is added, then apply a thin crumb coat of buttercream and chill for twenty minutes.
- Decorate the cake. Frost the exterior with remaining buttercream, pipe decorative swirls, and top with fresh mango cubes before serving.
Notes
- Ensure the mango curd is completely chilled before assembly to prevent it from sliding out from between the layers.
- Use room temperature butter for the frosting to avoid temperature shock that leads to separation or curdling.
- Keep the knife blade hot and clean between cuts to ensure the buttercream and fruit filling remain neat and sharp.
- Sift your dry ingredients thoroughly to guarantee an even, airy crumb for your cake sponges.
- Avoid using chocolate chips for the frosting as the stabilizers they contain can create a grainy texture in the buttercream.
- Prep Time: 45 mins
- Cook Time: 90 mins
- Category: Dessert
- Method: Baking
- Cuisine: Tropical
