Pamel Worthen's Valley Blueberry and Whole Wheat Muffins

2 1/2 cups whole wheat flour
2 1/2 cups quick or old fashioned oats, uncooked
1 cup oil
2 eggs
1 1/2 cups brown sugar
2 cups milk
1 teaspoon salt
2 teaspoon soda
2 teaspoons vanilla
1 teaspoon orange peel
2 cups blueberries
1 cup chopped walnuts
2 tablespoons sugar
2 teaspoons cinnamon

Combine flour and oats in a large bowl, set aside. Mix oil, eggs, brown sugar, milk, salt, soda, vanilla and orange peel in blender for about 1 minute on low. Add to flour and oats and stir until moistened. Fold in berries and nuts. (Batter will be runny). Fill muffin cups 2/3 full. (Use paper cups or grease muffin pans). Mix together sugar and cinnamon and sprinkle over muffins. Bake at 400 degrees for 20 minutes. Serve warm with butter. Makes 3 dozen muffins.