I remember as a child, my mother making this, was one of her favorite pies. It is an Amish recipe, we have Amish neighbors, and they love to share their recipes. If you like sweet, you will love this...
Bottom Part: Begin by stirring the egg into 1 cup brown sugar. Add the molasses. Dissolve the baking soda in the boiling water. Add the cold water, then combine with the sugar and egg mixture.Add the warm water mixture, stirring well. Pour into an unbaked 9 inch pie shell.
Crumbs: Cut the flour, brown sugar, baking powder, and shortening together until crumbly. Sprinkle on top of the Bottom Part.
Bake at 350 degrees for 10 minutes. Reduce heat to 325 degrees and bake 50 minutes longer or until done.