Add melted chocolate and eggs to the butter/ sugar mixture and beat until smooth.
Add a half cup of the flour into which the baking powder has been blended.
Then add the milk and vanilla and the remaining flour, alternating them.
The cake batter will be stiff enough to drop from a spoon (which may seem stiffer than other cake batters)
Beat until smooth
Bake in 2 square or round cake pans, for 20-25 minuts at 350 degrees (325 for a dark coated pan) or until the cake springs back when touched with a finger.
When the cake is totally cool, frost the bottom layer, then add the top and frost the outside.