Chocolate Cookies

• little more than half a cup flour
• 1/4 cup cocoa
• 1/2 tsp baking soda
• 1/8 tsp – baking powder, salt
• 1/2 cup sugar
• 1/4 + 1 tbsp butter
• 1 large egg

Vanilla Filling

• 1/8 cup butter, vegetable shortening
• 1 cup sugar
• 1/2 tsp vanilla extract