Chocolate Crackle Cookies

Ingredients

• 1 1/4 c flour
• 1/2 c cocoa powder
• 2 tsp baking powder
• 1/4 tsp salt
• 1 stick (1/2 c ) unsalted butter
• 1 1/3 packed brown sugar
• 1 tsp vanilla
• 2 eggs
• 8 oz melted bittersweet chocolate
• 1/3 c milk