Instructions

  1. Preheat oven to 400°.
  2. Combine 4-1/2 cups flour, 2-1/4 cups sugar, salt and baking powder.
  3. Add oil, egg and milk to flour mixture.
  4. Fold in blueberries.
  5. Crumb topping: Mix together 1/1/2 cups sugar, 1 cup flour, 3/4 cup margarine and cinnamon.
  6. Sprinkle over muffins before baking.