Low-fat Fudgy Brownies

Ingredients

 * 4 oz unsweetened chocolate
 * 1/2 cup prune puree
 * 3 large egg white
 * 1 cup sugar
 * 1 tsp salt
 * 1 tsp vanilla
 * 1/2 cup flour
 * 1/4 cup walnuts

Directions
Preheat oven to 350 °F. Coat an 8-inch square baking pan with vegetable cooking spray; set aside. Cut chocolate into 1-inch pieces and place in heat-proof bowl. Set over low heat in small skillet containing ½-inch simmering water. Stir occasionally just until chocolate is melted. Remove from heat; set aside. In mixer bowl combine all ingredients except flour and walnuts; beat to blend thoroughly. Mix in flour. Spread batter in prepared pan; sprinkle with walnuts. Bake about 30 minutes until springy to the touch about 2 inches around edges. Cool on rack. Cut into 1 ½-inch squares.