INGREDIENTS
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Crust * 1 box of yellow cake mix * 4 ounces butter, melted * 1 egg * 1 tablespoon lemon zest Berry Custard Filling * 3 large eggs * 1 1/4 cup sugar * 3/4 cups sour cream * 1/2 cup flour plus 2 tablespoons * 3 tablespoons cornstarch * 12 oz raspberrie