Get together all of the needed supplies.
Put 1/4 cup of flour, 1/4 cup of brown sugar, and 2 tbs of cocoa into a bowl. Stir it up so it's completely mixed.
Add in 2 tbs of melted butter or oil, and 2 tbs of milk, water or coffee.
Mix it together and pour it into a mug or microwaveable bowl. You may want to spray it with cooking spray first.
Put it in the microwave on high for 1 minute.
Top with ice cream and enjoy!