1 unbaked pie shell
1 unbaked pie shell to use for a cover
2 c. blueberries
3 tbsp. lime juice (fresh is best)
1/4 c. flour
1 c. sugar
4 tbsp. butter

Pour lime juice over berries and set aside. Mix flour and sugar together and pour over berry mixture. Pour mixture into unbaked pie shell. Dot butter over top. Cover with other crust. Bake 40 minutes at 350 degrees.