Hershey – 1934
3/4 c brown sugar, packed
1/3 c flour
1/2 teaspoon salt
2 and 1/2 c milk
6 tablespoon Hershey’s Chocolate-Flavored Syrup
2 egg yolks, well beaten
2 tablespoon butter
1/2 teaspoon vanilla
1 9-inch baked pie shell
Thorougly combine sugar, flour, and salt. Stir in milk, chocolate syrup, and beaten egg yolks. Cook over medium heat until thick, stirring constantly. Remove from fire; blend in butter and vanilla. Pour into baked pie shell; cool. Chill in refrigerator. Serve with sweetened whipped cream if desired.