In a large bowl, combine cake mix, 1 cup 7 Up, eggs, and oil. Beat with an electric mixer on low speed until well combined. Raise the speed to medium and beat for 2 minutes.
In a large bowl, combine cake mix, 1 cup 7 Up, eggs, and oil. Beat with an electric mixer on low speed until well combined. Raise the speed to medium and beat for 2 minutes.