Combine dry cake mix, 1 1/4 cup root beer, oil and eggs. Beat on low speed for 2 minutes or stir by hand for 3 min. Pour into a greased 13 x 9 x 2 baking pan.
Bake at 350°F for 30-35 min or until a toothpick comes out clean. Cool completely.
Combine the whipped topping mix and remaining root beer. Beat until soft peaks form. Frost cake. Store in the refrigerator.
Calories From Fat
% Daily Value*
Total Fat 0g
Saturated Fat 0g
Trans Fat 0g
Dietary Fibers 0g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.