1 2/3 c. flour
1 c. brown sugar or granulated sugar
1/4 c. cocoa
1 tsp. salt
1 tsp. baking soda
1 c. water
1/3 c. vegetable oil
1 tsp. vinegar
1/2 tsp. vanilla
1/2 c. chocolate chips

Heat oven to 350 degrees. Mix flour, brown sugar, cocoa, baking soda and salt. Pour in ungreased square pan 8 x 8 x 2 inch. Mix in remaining ingredient except chocolate chips. Sprinkle chocolate chips over batter. Bake until wooden pick inserted comes out clean, 35 to 40 minutes. Sprinkle with powdered sugar.