01 -
Set your oven to 350°F (177°C). Grease a round 6-inch cake pan, add a parchment sheet inside, then grease the paper too.
02 -
In a big bowl, mix cocoa powder, flour, baking soda, salt, and espresso powder with a whisk.
03 -
Grab another bowl, then whisk together the oil, egg, sugar, vanilla, and buttermilk. Blend until it’s all smooth, then combine it with the dry mix.
04 -
Pour the batter into the pan you prepped earlier. Bake for around 27-30 minutes, or until a toothpick comes out clean. Cool the cake on a wire rack completely.
05 -
Warm up the cream and pour it over the chopped chocolate. Wait 2-3 minutes so it melts, then stir it till smooth. Leave it for 30-60 minutes to get thicker.
06 -
Spread the ganache over the cooled cake using a spoon or pipe it on. Top it with things like raspberries, mint, or sprinkles if you want.