Just dropped by my parents place and my dad was pulling this out of the oven!
Impressive Dad! Here it is:

Fresh Blueberry Pie with Lattice Crust

Fresh Blueberry Pie
6 cups fresh blueberries
3/4 cup sugar
1/2 cup flour
1 Tbsp. fresh lemon juice
1 Tbsp. butter

Best pie Crust ever

Ingredients:
2 cups all-purpose flour
1 teaspoon salt
1 cup shortening
1/2 cup water

Directions:

1. In a large bowl, combine flour and salt. Cut in shortening until mixture resembles coarse crumbs. Stir in water until mixture forms a ball. Divide dough in half, and shape into balls. Wrap in plastic, and refrigerate for 4 hours or overnight.
2. Roll out dough on a floured counter. Don’t over work it.

Place bottom crust into 9-inch pie plate letting the crust hang over the edges. Mix together the blueberries, sugar and flour. Pour into the crust. Sprinkle the blueberries with lemon juice and dot with butter. Top with lattice crust. Seal and crimp edges of pie.

Bake in a preheated 425 degree oven for 35-45 minutes until the crust is golden brown and the juices are bubbly.