Carnation Famous Fudge
["2 Tbsp. butter or margarine", "2/3 c. evaporated milk", "1 1/2 c. granulated sugar", "1/4 tsp. salt", "2 c. (4 oz.) mini marshmallows", "1 1/2 c. semi-sweet chocolate morsels", "1 tsp. vanilla extract", "1/2 c. chopped pecans or walnuts (optional)"]
["Butter 8-inch square pan.", "In medium saucepan, combine butter, evaporated milk, sugar and salt.", "Bring to a boil over medium heat, stirring constantly.", "Boil 4 to 5 minutes, stirring constantly; remove from heat."]
["butter", "milk", "sugar", "salt", "marshmallows", "semi-sweet chocolate morsels", "vanilla extract", "pecans"]