Chocolate Chip Cake
["1 pkg. yellow cake mix", "1 (3 1/2 oz.) pkg. instant vanilla pudding mix", "1/2 c. vegetable oil", "4 eggs", "1 c. sour cream", "1 c. (6 oz.) chocolate chips", "1/2 c. walnuts, chopped"]
["Preheat oven to 350\u00b0.", "Grease and dust, with flour, a 10-inch tube pan."]
["yellow cake mix", "instant vanilla pudding mix", "vegetable oil", "eggs", "sour cream", "chocolate chips", "walnuts"]