HOT MILK CHOCOLATE CAKE

In a blender add--
Sugar 1 1/2 cup
Oil 1 cup
Eggs 4
Blend
Then add --
Flour 2 cups
Baking powder 2 tsp
Baking Soda 1 tsp
Cocoa powder 1/2 cup
Blend
Hot milk 2 cups
For hot chocolate milk layer --
Milk 1cup
Cocoa powder 3 tbsp
Sugar 2 tblsp
Chocolate 2 pieces