Blueberry Muffin Recipe

Ingredients

• 2 cups flour
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• ¼ teaspoon salt
• ½ cup butter, melted and cooled to room temperature
• ½ cup white sugar
• 2 eggs, lightly beaten
• 1 teaspoon vanilla extract
• ¾ cup buttermilk
• ½ cup frozen blueberries