Blonde Brownies II

2 cups flour
2 cups brown sugar
2/3 cup margarine
2 eggs, slightly beaten
1 1/2 teaspoons vanilla
1 teaspoon baking powder
1/4 teaspoon soda
1 teaspoon salt
1 cup chocolate chips
1/3 cup chopped nuts

Cream together the sugar and margarine, then add eggs and vanilla. Add flour, baking powder, soda, and salt to creamed mixture. Spread in 13X9 inch pan. Put on top the chips and chopped nuts. Bake in 350 degree oven for 30 minutes.