Blueberry muffins are a type of sweet muffin made with fresh or frozen blueberries mixed into the batter. The batter is typically made with flour, sugar, eggs, butter or oil, milk, and baking powder or baking soda. Blueberry muffins can be made with a variety of toppings, such as streusel, crumble, or a dusting of powdered sugar.
They are a popular breakfast or brunch item, but can also be enjoyed as a snack or dessert. Blueberry muffins are often served warm with a pat of butter or a dollop of whipped cream.