Blueberry Sour Cream Coffee Cake - Red Cottage Chronicles

Ingredients

• 1 cup butter, softened
• 1 ½ cups sugar
• 2 large eggs
• 1 cup sour cream
• 1 teaspoon vanilla extract
• 2 cups all purpose flour
• ½ teaspoon baking powder
• ½ teaspoon baking soda
• ½ cup blueberries, fresh or frozen
• 3 tablespoons sugar
• 2 teaspoons cinnamon
• 4 ounces cream cheese
• ¼ cup butter
• 1 cup confectioners sugar, sifted
• 2 to 3 tablespoons milk or cream