Line muffin tin with regular liners or spray with cooking spray. Note: To prevent the muffin tops from sticking to the pan, line the tray with liners, then spray the top of the pan with non-stick spray.
Combine 2 ¼ cups flour, 1 cup sugar, salt, and baking powder in a mixing bowl.
Combine oil, milk and eggs in a small bowl.
Add wet ingredients to dry ingredients and stir until combined.
Gently fold in blueberries using a rubber spatula.
Fill muffin cups right to the top.
Optional Streusel Topping:
Mix together ½ cup sugar, ⅓ cup flour, ¼ cup butter, and 1 ½ teaspoons cinnamon.
Mix with a fork, and sprinkle over blueberry muffins before baking.
Bake muffins for 18-20 minutes, or until done.
Video
Notes
Sometimes I use half whole wheat flour, and they taste just as great. To make them even healthier, omit the streusel topping.Store muffins in an airtight container on the counter for 3-4 days. To freeze, wrap the muffins individually in plastic then store in a large plastic bag in the freezer for up to 3 months. Thaw in the refrigerator overnight or on the counter for a few hours.