Blueberry Muffins

2 cups all purpose flour

1/3 cup granulated sugar

1/2 tsp salt

3 tsp baking powder

1 egg

1 cup milk

1/4 cup vegetable oil

2 tsp lemon juice

1 cup fresh blueberries

Demerara sugar, to sprinkle on top

Preheat oven to 425 F. Combine dry ingredients in a bowl. Combine wet ingredients with a whisk and add to dry ingredients. Stir briefly. Flour should be damp, but mixture still lumpy. Fold in blueberries. Fill greased muffin tins 2/3 full. Bake 25 minutes. Makes 12 muffins.