"This apple upside down cake has a glaze of caramelized apple slices atop a moist spiced yellow cake...."
INGREDIENTS
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1 cups (2 sticks) butter, divided
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1/2 cup firmly packed brown sugar
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4 teaspoons McCormick® Pure Vanilla Extract , divided
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3 teaspoons McCormick® Apple Pie Spice , divided
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2 apples, such as Gala or Jonagold, peeled and thinly sliced
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1 package (2-layer size) yellow cake mix
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4 eggs
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1 container (8 ounces) sour cream