2 c  Yams; cooked & mashed
2    Eggs; beaten
1/4 ts Salt
3/4 c  Milk
1 c  Sugar
1/2 c  Butter; melted
1 ts Vanilla
1 ts Cinnamon (optional)
1    (9-inch) unbaked pie shell

Mix all ingredients together well and pour into the pie shell. Bake in a
preheated 350 degree oven for 1 hour. Top with whipped cream or Cool Whip
before serving.