Lemon Blueberry Cupcakes with Lemon Cream Cheese Frosting

INGREDIENTS

• 10 to 12 cups powdered sugar
• Zest of 1 lemon
• 1/2 teaspoon salt
• 2 cups sugar
• 3 1/2 cups all-purpose flour
• 1 teaspoon vanilla extract
• 1 1/2 cups fresh blueberries
• 2 sticks butter
• 1 teaspoon baking soda
• Juice and zest of 1 lemon
• 3 eggs
• 2 cups sour cream
• 8 ounces cream cheese