We love these!!
1 1/2 cups flour
3/4 cup sugar
1/2 tsp salt
2 tsp baking powder
1/3 cup vegetable oil
1/3 cup milk (approximately - see instructions)
1 cup fresh or frozen blueberries
Preheat oven to 400. Grease or line muffin tin. Combine flour, sugar, salt and baking powder. Place vegetable oil into a 1 cup measuring cup; add the egg and enough milk to fill cup. Mix this with the flour mixture. Fold in blueberries. Fill muffin cups and sprinkle with crumb topping. Bake 20-25 minutes or until done.
Crumb Topping: Mix together 1/2 cup white sugar, 1/3 cup flour, 1/4 cup butter (cubed) and 1 1/2 tsp cinnamon. Mix with fork or pastry blender.