Preheat oven to 400 degrees F. Beat eggs. Add molasses. And you'll get a nice, golden-colored mixture.
Combine sugar, flour and baking soda and add to egg mixture. Add thick milk. Pour into unbaked pie shells. Bake for 10 minutes; then reduce oven temperature to 325 degrees F and bake for 40 to 45 minutes.
Sprinkle top of pie with cinnamon, if desired.
Recipe by Amish 365 at https://www.amish365.com/old-fashioned-milk-pie/