In a large saucepan, combine the sugar & milk. Bring to a boil; then lower heat to medium. Stir 5 minutes over medium heat to soft ball stage (about 238 degrees). Remove the pan from the heat and stir in the marshmallow cream, peanut butter and vanilla. Beat until well blended. Pour into a greased 8x8 inch pan. Cool.

It it sets for you, cut into squares. If not, feel free to dig in with a spoon. We won't judge.