Blackberry Cream Pie

We had a huge bag of frozen blackberries from out trip to the orchards, so I wanted to make a pie with them. I found this recipe and we made it last week when my parents were here. It was wonderful! We just did a lattice top instead of a crumb topping. I wonder if it is freezable....

***Update*** We followed the recipe this time and it was sooooo good. Forget the lattice and just follow the directions. :o)

1 (9 inch) pie crust, unbaked
4 c. fresh or 16 oz. frozen blackberries
1 c. sugar
1 c. sour cream
3 tbsp. flour
1/4 tsp. salt

TOPPING:

1/4 c. bread crumbs
2 tbsp. sugar
1 tbsp. melted butter

Put blackberries in pie crust. Cream together next 4 ingredients and pour over blackberries. Combine topping ingredients and sprinkle over pie. Bake at 375 degrees for 40 to 45 minutes. Delicious served with vanilla ice cream.