1Make the chocolate crepe batter: Combine cocoa powder and flour in a bowl. In a separate bowl, whisk together eggs, milk, and vanilla extract. Add the wet ingredients to the dry ingredients and mix until combined. Refrigerate the batter.
2Make the crepes: Cook the chocolate crepe batter in a pan until golden brown on both sides.
3Make the filling: In a bowl, combine heavy cream, powdered sugar, and vanilla extract. Divide the filling into two bowls. Add red food coloring to one bowl to make a pink filling.
4Assemble the crepe cake: Spread a layer of pink filling on a chocolate crepe, top with another chocolate crepe, and repeat the layering process with white and pink fillings. Refrigerate to set.