LIQUID PART:

1/2 tbsp. baking soda dissolved in 3/4 cup boiling water
1/2 cup molasses
1 egg yolk, beaten well

CRUMBS:

3/4 cup flour
1/2 tsp. cinnamon
1/8 tsp. each of nutmeg, ginger, cloves
1/2 cup brown sugar
2 tbsp. shortening
1/2 tsp. salt

Combine dry ingredients with shortening, using hands to work into crumbs.

Line a 9-inch pie plate with pastry. Fill with liquid and top with crumbs.

Bake in a 400°F oven until crust starts to brown (about 10 minutes). Reduce to 325°F and bake until firm.