01 -
Preheat the oven to 400°F. Lightly spray a 9-inch deep dish pie pan with nonstick spray.
02 -
Press the refrigerated pie crust evenly into the pie pan and crimp the edges. Set aside.
03 -
In a large bowl, stir molasses into boiling water until dissolved. Lightly beat the egg, then add it to the molasses mixture. Stir in baking soda, salt, cinnamon, and nutmeg until fully incorporated. Pour filling into the prepared crust.
04 -
In another bowl, combine flour and dark brown sugar. Incorporate softened butter using a fork or fingers until mixture resembles damp sand. Evenly sprinkle crumble over the filling.
05 -
Reduce oven temperature to 350°F and bake the pie uncovered for 40 minutes, until the center is set.
06 -
Allow the pie to cool slightly. Serve warm or at room temperature.