In medium bowl, mix flour, cocoa, baking soda and salt. In another medium bowl, beat egg whites, whole egg, sugar and oil with electric mixer on medium-high speed 1 to 2 minutes or until well mixed. Alternately add flour mixture and soymilk, beating on low speed after each addition, until well blended. Add coffee granules and vanilla; beat on low speed 30 seconds. Divide batter evenly among muffin cups (about 3 tablespoons each).