National Blueberry Muffin Day is observed worldwide every July 11, celebrating the popular blueberry muffin. This day encourages people to enjoy blueberry muffins, which are recognized as the official state muffin of Minnesota. Muffins, including blueberry varieties, are quick bread products that can be sweet or savory, typically baked in special muffin cups. To celebrate, individuals often bake their own blueberry muffins using a mixture of ingredients such as flour, sugar, baking powder, and fresh blueberries. The day highlights the joy of cooking and enjoying this delicious treat, making it a delightful occasion for muffin enthusiasts.