Blueberry Muffins - Good Food St. Louis

Ingredients

• 1/2 cup 1 stick butter
• 3/4 cup sugar
• 2 large eggs
• 2 tsp. baking powder
• 1/2 tsp. salt
• 1 tsp. vanilla extract
• 2 cups unbleached all-purpose flour
• 1/2 cup milk
• 2 cups blueberries (fresh preferred)
• 1/4 cup sugar (for topping)
• Lemon zest (optional)