INGREDIENTS
•
Crust and Topping
•
3 cups flour
•
1 1/2 cups sugar
•
1/4 tsp salt
•
1 1/2 cups butter chilled, 3 sticks
•
Filling
•
4 large eggs
•
2 cups sugar
•
1 cup sour cream
•
3/4 cup flour
•
pinch salt
•
2 tsp lemon zest
•
1 tsp vanilla extract
•
2 lb blackberries (if frozen thawed and drained)