In a large bowl, mix the dry ingredients together, forming a well in the center.
In another bowl, combine the wet ingredients (except for the blueberries). Pour this mixture into the dry mixture, and stir just until moistened (batter should be slightly lumpy).
Fold blueberries into the batter.
Preheat oven to 400*. Pour batter into greased muffin pans, and bake for 18-20 min. or until slightly browned.