Blackberry Cream Pie - cooking recipe

Ingredients

1 c. sugar
1 c. sour cream
3 Tbsp. flour
1/4 tsp. salt
4 c. blackberries, rinsed, or 16 oz. bag frozen berries (available at Bi-Lo)
1 (9-inch) unbaked pie crust
1/4 c. fine dry bread crumbs
2 Tbsp. sugar
1 Tbsp. butter, melted

Preparation

Note:
I usually double the last 3 ingredients.
One-fourth cup doesn't cover a 9-inch pie very well.