- 2 cups packed brown sugar
- 2 cups white sugar
- 4 tablespoons butter
- 1 cup milk
- 1 1/2 cups peanut butter
- 2 teaspoons vanilla extract
- 2 cups miniature marshmallows
- Butter one 9×9 inch pan and set aside.
- In a 3 quart saucepan, combine white sugar, brown sugar, milk, and butter. Cook to soft ball stage, 234 degrees F (112 degrees C). Remove from heat.
- Stir in peanut butter, vanilla and marshmallows; continue stirring until marshmallows are melted. Pour into prepared pan and cool. Cut into squares and serve.