Moist, rich chocolate cake layered with fudgy chocolate frosting. This is the perfect celebration cake, or make it whenever you have a serious chocolate craving.
Preheat oven to 350°F/180°C. Generously butter two 8-inch cake pans that are at least 2-inches high, and dust with cocoa powder, tapping the ramekins slightly to remove any excess.
In a large bowl, place flour, cocoa powder, baking powder, baking soda, salt, and sugar. Mix until combined. Set aside.
Assembling the cake:
Set one layer on a plate with the flat side facing up (or, if your cake rose too much, cut its rounded top with a serrated knife to make it flat). Evenly spread about ⅓ of the frosting over the cake to the edge. Top with the second cake layer, rounded side up. Spread the remaining frosting over the top and sides of the cake.