You need:

• 1 2/3 cups white sugar
• 2/3 cup evaporated milk
• 1 tablespoon unsalted butter
• 1/2 teaspoon salt
• 1 (6 ounce) packages milk chocolate chips
• 16 large marshmallows
• 1 teaspoon pure vanilla extract
• 1 cup chopped nuts

How to make it :

Combine sugar, milk, butter and salt in a medium sized saucepan. Bring to a boil, cook 5 minutes, stirring constantly.
Add in chocolate chips; cook until melted.
Remove from heat; stir in marshmallows, vanilla and nuts. Mix well.
Pour into a 8-inch pan.
Cool cut into squares.