Preparation Steps

• In a heavy-bottomed saucepan, combine sugar, butter, and evaporated milk.
• Cook over medium heat, stirring constantly, until sugar is dissolved and butter is melted.
• Bring to a boil and cook, stirring constantly, for 5 minutes.
• Remove from heat and stir in the chopped chocolate until melted and smooth.
• Stir in the vanilla extract and walnuts, if using.
• Pour the mixture into a buttered 8x8 inch baking pan.
• Let cool completely before cutting into squares.