Raspberry Custard Tart

3 1/2 cups all-purpose flour 

2 tsp. kosher salt 

4 sticks cold unsalted butter, cut into 1-inch cubes 

2 tsp. white wine vinegar 

1 cup ice water 

1 cup crème fraîche 

2 eggs 

1/4 cup sugar 

1 Tbs. all-purpose flour 

1/2 tsp. kosher salt 

1/2 tsp. vanilla extract 

3 cups raspberries, sliced peaches or sliced apricots