Cocoa Brownies

1 cup sugar 1 1/4 cups all purpose flour 3/4 cup packed light brown sugar 2/3 cup unsweetened cocoa powder 1/2 cup chopped walnuts ( optional) 1 teaspoon baking powder 1/4 teaspoon salt. Place dry ingredients in jar or zip lock bag ( needs to hold 1 quart) List the above ingredients on your recipe card and add: 3 eggs 3/4 cup of butter--softened 1 1/2 teaspoon of vanilla Preheat oven to 350 degrees. Lightlly spray or grease 9 x 13 baking pan. Beat butter until smooth, add eggs and vanilla and stir until well blended. Add dry ingredients and mix until well blended. Spread evenly in pan and bake for 20 to 25 minutes or until inserted toothpick comes out clean. Do not over bake. Cool on wire rack. Enjoy!