Red Velvet Cake

Ingredients

• 1 1/2 cup sugar
• 1/2 cup vegetable shortening
• 2 eggs
• 1 teaspoon vanilla
• 1 teaspoon butter flavoring
• 1 cup buttermilk
• 1 tablespoon vinegar
• 1 teaspoon baking soda
• 1 teaspoon salt
• 3 tablespoons cocoa powder
• 1 bottle (1 1/2 ounces) red food coloring
• 2 1/2 cup cake flour, sifted
• 3 cups confectioners' sugar
• 1 package (8 ounces) cream cheese, softened
• 1 stick (1/2 cup) butter, softened
• 1 tablespoon milk