Kahlua Chocolate Cake

1 (18 to 22 ounce) box devil's food chocolate cake mix
4 eggs
1 cup sour cream
1 cup Kahl?a or other coffee-flavored liqueur
3/4 cup vegetable oil
1 (6 ounce) package chocolate chips (about 1 cup)

Preheat oven to 350 degrees F. Grease and flour a 12-cup Bundt pan.

In a large mixing bowl, combine cake mix, eggs, sour cream, Kahl?a and oil. Beat with electric mixer 3 to 5 minutes. Fold in chocolate chips.

Pour into pan and bake 45 to 55 minutes. Check the cake after 45 minutes to see if it tests done; do not overbake.

Cool in pan for 5 minutes, then remove from pan to cool on wire rack.