1 Corn Syrup
2 1/2 Butter
Place the sugar, corn syrup and milk in a saucepan and stir over low heat until the sugar dissolves.
Bring to a boil, then simmer for 5 minutes.
In the top of a double boiler dissolve the marshmallows and butter in the 2 tablespoons of water.
Once the marshmallows are completely melted stir in the hot syrup beating well.
Add the vanilla.
The sauce may be reheated in the top of a double boiler.
Beat well before serving.