The primary ingredient in a blueberry muffin is, unsurprisingly, blueberries. These small, round berries infuse moisture and sweetness into the muffins, making them a beloved breakfast or brunch treat. The muffins are typically made using a base of flour, sugar, baking powder, eggs, and milk, combined with fresh or frozen blueberries folded into the batter. Their sweet flavor, combined with blueberries’ health benefits, such as antioxidants and vitamins, makes blueberry muffins a popular choice. The delightful combination of flavors and textures, often enjoyed warm, adds to the ongoing popularity of this baked good in cafes and homes alike.