Preheat the oven to 400 degrees Fahrenheit.
Line 12 regular-size muffin cups with paper liners. Alternatively, you can grease the bottom of each cup with butter or vegetable oil.
In a large bowl, mix together all ingredients (except for the blueberries), just until moistened.
Very gently stir in the blueberries.
Divide the mixture evenly into 12 muffin cups.
Bake for 13 to 18 minutes, or until golden brown.