Blueberry Pie Filling

1 T lemon juice

5 c blueberries

2 T flour

1 c sugar

2 T cornstarch

1 T butter (dot filling with butter once in crust)

Sprinkle lemon juice on berries. Mix flour, sugar, and cornstarch. Add to berries, toss lightly.

Glaze:

1 egg white

2 T white sugar

1 t brown sugar

Beat egg white with 1 T water. Brush top of the pie with egg white, then sprinkle with sugars. Bake at 425 for 10 minutes. Reduce heat to 350 and bake 45 minutes