INGREDIENTS
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For the Cake 1 cup unsalted butter , softened 1 1/2 cups granulated sugar zest of 3 medium limes 2 teaspoons vanilla 2 eggs 2 cups all-purpose flour 1 teaspoon baking powder 1 teaspoon baking soda 1 cup Green Valley Organics Sour Cream 1/2 cup sweete