"My favorite Sour Cream Coffee Cake is so moist and buttery, with a cinnamon streusel layer in the middle and on top, and drizzled with a sweet glaze!..."
INGREDIENTS
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1 3/4 cups all purpose flour
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1 cup packed light brown sugar
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1 1/4 tsp ground cinnamon
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1/4 tsp kosher salt
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3/4 cup (1 1/2 sticks) unsalted butter (COLD) (cut into small pieces)
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1/2 cup unsalted butter (softened to room temperature)
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2 cups all purpose flour
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1 1/4 tsp baking powder
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1/2 tsp baking soda
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1/2 tsp kosher salt
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1 cup granulated sugar
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2 large eggs
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1 1/2 tsp vanilla extract
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1 cup sour cream
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1 cup powdered sugar
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2 Tbsp whole milk