Carnation Chocolate Fudge Candy

Easy, and really good!
Ingredients:
1 1/2 C white sugar
2 TBSP Butter
2/3 C evaporated milk
1/4 tsp salt
1 tsp vanilla
1 1/2 C semi-sweet chocolate chips
2 C mini marshmallows
Walnuts or pecans (optional)

Bring first 4 ingredients to a simmer over medium heat.  Simmer for 5 minutes (set a timer) and stir occasionally.  Turn off heat and remove from burner after 5 minutes.  Stir vanilla into hot mixture and combine.  Add marshmallows and chocolate chips, and stir until smooth.  Pour into an 8x8 or 9x9 pan lined with foil.  Tap against counter to settle and pop air bubbles.  Allow to sit on counter until chocolate stops steaming, then place plastic wrap over the top and refrigerate for at least 2 hours, or overnight.  When ready to cut, use foil to lift chocolate out of pan and flip onto a cutting board.  Cut with a long sharp knife, and wipe blade with a wet towel between each cut.