4 ounces butter
1 cup brown sugar
1 cup chocolate chips
3 eggs, beaten
1/3 cup gluten-free flour
1/3 cup cocoa powder
1/4 teaspoon gluten-free baking powder

Preheat oven to 360 degrees F.

Put butter, sugar and chocolate in a large microwave-safe bowl. Heat in microwave on HIGH for one minute. Stir well. Repeat. Stir so all ingredients are properly combined. Sift flour, cocoa and baking powder into the mixture and stir well. Add the beaten eggs. Stir.

Grease an 11 x 7-inch pan. Pour in mixture. Bake for about 35 minutes. Place on rack to cool. Slice.