By Akshara
October 25, 2026
Inspired by viral bakery sensations sweeping social media, this decadent London-style chocolate and caramel cake is a masterpiece of rich textures. Featuring moist dark chocolate sponge layers, a gooey salted caramel filling, and a glossy chocolate ganache coating, it delivers the ultimate bakery-style indulgence. Baking it at home allows you to control the sweetness and achieve that show-stopping mirror-shine finish for special occasions.
For Cake Sponge: 1.5 cups all-purpose flour, 1 cup granulated sugar, 1/3 cup unsweetened cocoa powder, 1 teaspoon baking soda, 1/2 teaspoon salt, 1 cup warm water or coffee, 1/3 cup neutral oil, 1 tablespoon apple cider vinegar  For Caramel Filling: 1/2 cup granulated sugar, 2 tablespoons butter, 1/4 cup heavy cream, pinch of sea salt  For Chocolate Ganache: 1 cup dark chocolate chips, 3/4 cup heavy cream Method
Whisk the flour, sugar, cocoa powder, baking soda, and salt together in a bowl, then stir in the warm coffee, oil, and vinegar until a smooth batter forms.
Pour into two greased 6-inch cake pans and bake at 180C for twenty-five minutes.
Prepare the caramel by melting the sugar in a pan over medium heat until amber-colored, carefully whisking in the butter, heavy cream, and sea salt until smooth, then setting aside to cool.
Make the ganache by heating heavy cream until warm, pouring it over dark chocolate chips, and stirring until thick, glossy, and smooth.
Layer the cooled chocolate sponges with the salted caramel filling in the center, frost the entire cake evenly with the rich chocolate ganache, and chill briefly before slicing.