preheat oven to 400 degrees F. mix the egg, milk and oil. stir in flour, sugar, and baking powder until just moist, being careful not to over mix. then gently stir in the berries.
fill greased or paper-lined muffin tins until ⅔ full. bake 20 minutes, loosen immediately, and serve warm.
Recipe by foods before dudes at https://foodsbeforedudes.com/my-dads-blueberry-muffins/