Root Beer without cornstarch

1 each cake mix, yellow 18.25 oz. size 12 ounces root beer diet or regular * 1/4 cup vegetable oil or canola oil 3 x eggs extra large * 1 1/2 teaspoons root[...]

1 cup packed brown sugar 1/2 cup butter 1 egg 1/4 cup buttermilk 1 teaspoon root beer extract 1 3/4 cups all-purpose flour 1/2 teaspoon baking soda 1/2[...]

1/2 cup butter, softened 1 cup white sugar 2 eggs 3/4 teaspoon root beer extract 2 cups all-purpose flour 1 tablespoon baking powder 1 teaspoon salt 2/3 cup[...]