INGREDIENTS
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For the Cookies: 4 1/2 cups all-purpose flour 4 1/2 teaspoons baking powder 1 teaspoon salt 1 1/2 cups (3 sticks) unsalted butter, softened 1 1/2 cups granulated sugar 3 large eggs 5 teaspoons McCormick Pure Vanilla Extract For the Frosting: 5 cups c