Beat first 4 ingredients at medium speed with an electric mixer for 3 minutes or until blended; stir in coffee granules and candy bars. Spoon batter into a lightly greased 13" x 9" pan, spreading evenly (batter will be very thick).
Bake at 325° for 50 to 52 minutes or until center is set. Cool in pan on a wire rack. Cut into bars.