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Ingredients

• 4 3/4 sticks unsalted butter, room temperature, and a little more for the pan
• 5 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 2 teaspoons coarse salt
• 1 cup granulated sugar
• 3 large eggs
• 1 teaspoon vanilla extract
• 1 1/4 cups sour cream
• 1 cup packed light brown sugar
• 1 tablespoon ground cinnamon
• Confectioners sugar for dusting (optional)

Description

Serious Eats