Sift together:

2 c. flour, sifted
1 tsp. baking powder
1 tsp. salt
1/4 tsp. baking soda

Mix and add to dry ingredients:

2 c. brown sugar
2/3 c. water
2 eggs
2 tsp. vanilla

Mix and pour into pan and sprinkle chocolate (12 ounce bag) chips on top until covered. Bake at 350 degrees for 20-25 minutes.