Chocolate brownies, low cal

Ingredients

 * 6 oz chocolate, semisweet
 * 1/2 cup hot water
 * 4 each egg whites
 * 1 tsp vanilla
 * 2/3 cup sugar
 * 2/3 cup flour, all-purpose
 * 1 tsp baking powder
 * 1 pinch salt
 * 1 each icing sugar

Directions
In large heatproof bowl set over hot water, melt chocolate with water, stirring until smooth. Remove from heat; let cool slightly.§ whisk in egg whites and vanilla. Stir together sugar, flour, baking powder and salt; stir into chocolate batter just until combined. Pour into lightly greased 8 in. square cake pan. Bake in 350f oven for 20 to 25 minutes or until edges pull away from pan. Let cool on rack; dust with icing sugar.§ per serving: about 110 calories, 2 g protein, 4 g fat, 19 g carbohydrate