Ingredients:
For the Crust:
1 unbaked 9-inch pie crust
For the Crumb Topping:
1 1/2 cups all-purpose flour
1/2 cup brown sugar
1/2 cup unsalted butter, cold and cut into small pieces
1/2 teaspoon ground cinnamon
For the Filling:
3/4 cup molasses
3/4 cup boiling water