Directions

1. Preheat oven to 350 ºF
2. Prepare 4 10 cm cake pans (butter and flour the bottom and the sides of the pans)
3. In a large bowl, place butter and sugar, and mix well
4. Add eggs one by one
5. Add flour, cornstarch and baking powder, and beat until combined
6. Pour batter into pans and bake for 20-25 minutes
7. Leave the cakes in their pans on a wire rack for 10 minutes and then turn out to cool. Gently turn cakes back up, so the tops are up
8. When cold (the cakes can be frozen or kept on an airtight container for a few days) trim any doming or top crust from cake layers using a very sharp serrated knife
9. Now we are going to prepare the cocoa buttercream
10. Using and electric mixer, cream butter and sugar, until light and fluffy (about 5 minutes). Add gradually cocoa and milk, and beat until desired consistency. Now the buttercream is ready to use
11. Line a serving plate with pieces of paper parchment (so that they can be easily removed with you have finished with decoration). Place the bottom cake layer on top of your serving plate (it this is your first time frosting a cake, you might need to have a look at the proccess step by step)
12. Place 1 dollop frosting on top of the cake layer, and spread evenly with a small offset palette knife. Gently place 2nd cake layer, face up, on top. Put a generous scoop of frosting on top, spreading evenly with a small offset palette knife and working your way down the sides until you have a thin layer of frosting over the entire cake. Freeze until set, about 15 minutes.
13. After removing the cake from the freezer, finish frosting. Place a frosting dollop on top and move the frosting along the side of the cake, removing the excess as you turn the cake. Clean and moist the spatula between every swipe for a perfect finish on your mini cakes
14. Place an embossed cookie on the top of your minicake, and repeat the proccess for the other minicake