Old-Fashioned Buttermilk Lemon Cake

Ingredients:
CAKE MIX: King Arthur Unbleached Flour (wheat flour, malted barley flour), sugar, sweet cream buttermilk, lemon juice powder [corn syrup solids, lemon juice solids, citric acid, lemon oil, silicon dioxide (anti-caking agent)], modified food starch, leavening (monocalcium phosphate, baking soda, cornstarch), natural flavor.
GLAZE MIX: sugar, lemon juice powder [corn syrup solids, lemon juice solids, citric acid, lemon oil, silicon dioxide (anti-caking agent)]. Processed in a facility that also packages products containing eggs, milk, soy, tree nuts, and wheat.