1/2 cup softened butter
1 cup brown sugar
1 cup flour
1/2 tsp baking powder
A pinch of baking soda
1 tsp vanilla
1/2 cup chocolate chips, or add-in of choice
Preheat oven to 350 and grease an 8x8 baking pan or dish.
In a bowl, cream butter, brown sugar, and egg. Stir in dry ingredients, then add vanilla and chocolate chips, stir to combine. Spread batter in prepared pan and bake for 20-25 minutes.