Paula Deen’s updated lemon-lime soda cake recipe calls for vegetable oil and no butter. In addition to Seven Up, she also recommends using Mountain Dew and Sprite.
To make Paula Deen’s lemon-lime soda cake, preheat the oven to 325 degrees Fahrenheit. In a large bowl, beat 1 18.25-ounce box of lemon cake mix, 1 3.4-ounce box of instant lemon pudding mix, 1 12-ounce can of lemon-lime soda, 3/4 cup of vegetable oil and 4 large eggs until smooth. Pour into a greased and floured Bundt pan. Bake for 45 to 50 minutes and let it cool in the pan. This recipe makes 10 to 12 servings.