1 (18.5 oz.) pkg. devil's food cake mix
4 eggs
1 c. sour cream
1 c. kahlua or coffee liqueur
1 (6 oz.) pkg. semi-sweet chocolate chips
3/4 c. vegetable oil

In large bowl, combine cake mix, eggs, sour cream, kahlua and vegetable oil. Using electric mixer, beat at low speed to blend, then increase speed and beat 3-5 minutes at fast speed. Stir in chocolate chips. Pour batter into greased and floured 10-inch bundt pan. Bake at 350 degrees for 55-60 minutes or until cake tester inserted in center comes out clean. Cool in pan on rack, 30 minutes. Cool completely on rack. Serve with Cool Whip.