Blueberry Muffins

Ingredients:
1 1/2 C. flour
3/4 C. white sugar
1/2 t. salt
2 t. baking powder
1/3 C. vegetable oil
1 egg
1/3 C. buttermilk or milk
1/2 t. vanilla
1 C. fresh blueberries

1/2 C. brown sugar
1/3 C. flour
1/4 C. butter, softened
1 1/2 t. cinnamon

1. Preheat oven to 400.  Grease muffin cups and tops.
2. Combine 1 1/2 C. flour, 3/4 C. sugar, salt & baking powder.  Place oil in a 1 C. measuring cup; add egg&enough milk to fill the cup.  Mix this w/ flour mix.  Add vanilla.  Fold in blueberries.  Fill muffin cups 2/3 full & sprinkle w/ crumb topping.
3. To make crumb topping:  Mix together 1/2 C. brown sugar, 1/3 C. flour, 1/4 C. butter & cinnamon.  Mix with fork& sprinkle over muffins.  Bake for 18-20 minutes.