Martha'S Maple Cake - cooking recipe

Ingredients

1 box white cake mix
egg, for cake mix
oil, for cake mix
water, for cake mix
2 cups sugar
1/2 cup margarine
1 (5 ounce) can evaporated milk
1 teaspoon vanilla flavoring
1/4 teaspoon maple flavoring

Preparation

Prepare cake following package directions for a 9x13\" cake.
Mix remaining ingredients in a saucepan except for flavorings.
Heat over medium heat until bubbles appear, then boil over medium heat, stirring constantly, for 2 minutes and 20 seconds exactly.
Take off heat and add vanilla& maple flavorings.
Let set for about 3 minutes.
Beat with hand mixer until thick enough to spread on cake.