In a large mixing bowl, mix flour, sugar, cocoa, baking soda and salt. mix well, Make three wells in the flour mixture. In one put vanilla; in another the vinegar, and in the third the oil. Pour the cold water over the mixture and stir until moistened. Pour into 8 x 8-inch pan. Bake at 350°F. oven for 25 to 30 minutes, or until it springs back when touched lightly.
sprinkle powder sugar all over the on top yummy!!!!!!!!!!!! and it good with the mint in it too