Preparation Steps

• Grease an 8x8 inch baking pan and set aside.
• In a heavy-bottomed saucepan, combine sugar, butter, and evaporated milk. Cook over medium heat, stirring constantly, until butter is melted and sugar is dissolved.
• Bring the mixture to a boil and cook for 5 minutes, stirring occasionally. Do not let it scorch.
• Remove from heat. Stir in milk chocolate chips and marshmallows until melted and smooth.
• If using, stir in chopped nuts.
• Pour the mixture into the prepared baking pan and spread evenly.
• Let cool at room temperature for at least 2 hours, or until firm. Cut into squares.