Blueberry Pie

•Pastry for double crust pie
•3 pints blueberries, cleaned and stems removed
•2 tablespoons lemon juice
•1/4 cup flour
•1/2 cup sugar
•1/4 teaspoon cinnamon
•Butter

Combine flour, sugar and cinnamon. Add to blueberries along with the lemon juice. Put in pastry lined 9 inch pie pan. Dot top of filling with butter. Add top pie crust. Crimp edges. Cut slits in top and sprinkle with sugar. Have oven preheated to 375 degrees. Bake approximately 50 to 60 minutes on a cookie sheet lined with foil until golden brown.