INGREDIENTS
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16 tbsp. unsalted butter, plus more for greasing
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4 cups flour, plus 3 tsp.
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3 tsp. baking powder
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1 tsp. baking soda
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2 cups sugar
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4 eggs
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2 cups sour cream
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2 tsp. vanilla extract
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1 cup dark brown sugar
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5 tsp. ground cinnamon
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1 cup chopped pecans