1/4 cup butter
1 cup white sugar
2 eggs
1 cup milk
4 cups corn syrup
2 teaspoons vanilla extract
6 cups confectioners' sugar
1 cup semisweet chocolate chips
Preheat oven to 350 degrees F (175 degrees C). Grease and flour 2 (3 ounce) packages of miniature marshmallows.
In a large bowl, cream together the butter, sugar, eggs, and milk. Beat in the corn syrup, vanilla and confectioners' sugar; beat until smooth. Stir in chocolate chips. Spread marshmallow mixture over a large baking sheet.
Bake in the preheated oven for 40 minutes, or until marshmallows have hardened and are golden. Allow to cool on baking sheet before cutting into bars.