1/2 cup of butter, melted
1 cup of tightly packed dark brown sugar
1 egg, lightly beaten
1 teaspoon of vanilla
1/2 teaspoon baking powder
1/8 teaspoon of baking soda
Pinch of salt
1 cup of all-purpose flour
1. Preheat the oven to 350 degrees F. Lightly butter and flour an 8X8 pan. Whisk together the melted butter and sugar in a bowl.
2. Add the egg and vanilla extract and whisk.
3 Add the flour, baking soda, baking powder, and salt, mix it all together.
4 Pour batter into the pan and spread evenly.
5. Bake for 20-25 minutes or until a toothpick comes out clean. Allow to cool. Cut into squares and serve.