Preheat your oven to 350°F (175°C).

Prepare two heart-shaped cake pans by greasing and flouring them.

Cream together the softened butter and sugar until light and fluffy.

Add eggs one at a time, mixing well after each addition.

Stir in the milk and vanilla extract until combined.

Combine the flour, baking powder, and cocoa powder in a separate bowl. Gradually add these to the wet mixture until just blended.

Pour the batter into prepared pans and bake for 30-35 minutes.

Cool the cakes completely on a wire rack before frosting.

Whip the heavy cream and gradually mix in the powdered sugar until soft peaks form.

Frost the top of one layer, stack the other, and frost the top and sides of the entire cake.