2/3 cup Margarine, melted
2 cups Brown sugar
3 Eggs
2 3/4 cups Flour
2 1/2 teaspoons Baking powder
1/2 teaspoon Salt
6 ounces Semi-sweet Chocolate Chips
Combine melted margarine and brown sugar. Mix in the rest of ingredients, Pour into a greased 9X13 pan. Bake at 350º for 20-25 minutes. Cool, cut into 2" squares.