Preheat the oven to 350°F (180°C). Grease and flour a cake pan.
In a large bowl, whisk together the flour, cocoa powder, and baking powder.
In another bowl, cream together the butter and granulated sugar until light and fluffy. Add the eggs one at a time, mixing well after each addition.
Melt the dark chocolate over a double boiler or in the microwave. Stir the melted chocolate into the egg mixture.
Add the milk, then gradually mix in the dry ingredients until just combined. Do not overmix.
Pour the batter into the prepared pan and bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean. Let cool completely in the pan before frosting.
For the frosting, whip the heavy cream with the powdered sugar until stiff peaks form. Melt the white chocolate and gently fold it into the whipped cream.
Frost the top and sides of the cooled cake with the white chocolate cream, spreading it evenly.
Decorate the cake with edible chocolate sprinkles, arranging them in creative patterns on the top and sides.
Refrigerate the cake for at least an hour to allow the frosting to set. Slice and serve.
To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site and show (non-) personalized ads. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.