Caramel Cake

1 pound margarine, softened
3 1/4 cups granulated sugar
10 eggs
4 cups all-purpose flour
2 teaspoons vanilla extract

Cream margarine and sugar well in very large bowl. Alternately add eggs, one at a time, and flour. Beat well. Add flavoring. Bake in 3 (9-inch) round prepared pans at 325 degrees F for 45 minutes. Cool; frost with caramel frosting.