Cream butter and sugar together and beat until light and fluffy. Add eggs, 1 at a time, beating well after each addition. Add flour, flavoring, extract and Sprite. Pour batter into greased and floured tube pan. Bake at 325 degrees F for 1 1/2 hours.
I am so glad you posted this recipe. I love the 7-Up cakes they sell at the grocery stores around here but, who knows what kind of preservatives are in them, and 5 dollars is a little crazy for a cake.