Barefoot Contessa's Blueberry Coffee Cake Muffins Recipe - Food.com

Ingredients

• 12 tablespoons unsalted butter, at room temperature
• 1 1/2 cups sugar
• 3 extra-large eggs, at room temperature
• 1 1/2 teaspoons pure vanilla extract
• 8 ounces sour cream
• 1/4 cup milk
• 1 1/4 cups all-purpose flour
• 1 1/4 whole wheat flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1 pint fresh blueberries, picked through for stems