The best muffins have the best ingredients, so look for local, in-season blueberries. This recipe is so easy and can be made in one bowl. If you use frozen blueberries, that's ok too, but be aware that it might take a few minutes longer to bake. 1. First mix the dry ingredients together. 2. Then whisk in the wet ingredients. 3. Carefully fold in the fresh (or frozen) blueberries and scoop into greased or lined muffin cups. Using an ice cream scoop to fill the muffin cups helps to ensure that each muffin is the same size. The size I like is a #16. 4. Sprinkle raw sugar and extra blueberries on top of the dough before baking to give them that "bakery" look.