INGREDIENTS
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3 cups (6 sticks) margarine, such as Blue Bonnet, at room temperature, plus more to grease pans
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Two 1-pound boxes confectioners' sugar, boxes reserved
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12 large eggs, at room temperature
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2 pounds sifted cake flour, plus more to dust pans
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2 teaspoons vanilla extract
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Buttercream Frosting, recipe follows
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White Cream Decorator Frosting, recipe follows
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Special equipment: cake boards for each tier
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1 1/2 cup (3 sticks) butter, at room temperature
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2 pounds confectioners' sugar
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8 to 10 tablespoons light cream or milk
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3 teaspoons clear vanilla extract
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3/4 cup solid white vegetable shortening, such as Crisco
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1 pound confectioners' sugar
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Pinch of salt
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1 1/2 teaspoons clear vanilla extract
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Food coloring, optional