Good-Cooking - Blueberry Sour Cream Coffee Cake

Ingredients

• 1 (10-inch) Bundt pan
• 3/4 cup (1 1/2 sticks) unsalted butter softened (plus
• 2 tablespoons for buttering the pan)
• 1/4 cup light brown sugar
• 2 teaspoons cinnamon
• 1/4 cup granulated sugar
• 2 1/4 cups or 12 ounces fresh (if possible, or frozen) blueberries
• 3 cups unbleached white flour (plus 1 tablespoon to toss with
• fresh blueberries)
• 1 1/2 cups granulated sugar
• 1 1/2 teaspoons baking powder
• 1 1/2 teaspoons baking soda
• 1/2 teaspoon salt
• 1 teaspoon pure vanilla extract
• 3 large eggs
• 2 cups sour cream