Prepare one baked pie shell. If making homeade,use lard. heat oven to 400 degrees.
Heat together on top of a double boiler, untill very hot & butter is melted: butter, sugar, and cream. add together in bowl 1/4 cup cornstarch and 1/4 cup milk, untill blended. Then add to hot mixture, in double boiler,and Continue cooking until thick.
Pour into baked pie shell & sprinkle nutmeg and bake in oven for about 5 minutes to set. Let pie cool a bit before putting it in the refrigerator. Should stay overnight in the refrigerator.