Mini Blueberry Muffins

Ingredients

• 2-1/2 cups all-purpose flour
• 1 cup sugar
• 2-1/2 teaspoons baking powder
• 1/4 teaspoon salt
• 2 large eggs, room temperature, lightly beaten
• 1 cup buttermilk
• 1/4 cup butter, melted
• 1-1/2 cups fresh blueberries
• Coarse sugar, optional