Mondo Fudge

9 cups Semisweet Chocolate Chips
3 14 oz cans Sweetened Condensed Milk
3/4 cup Butter
2 tsp Vanilla
1 bag Mini Marshmallows
1 cup chopped Walnuts or Almonds (optional)

Prepare a 9x13 pan by lining with parchment paper and spray with nonstick cooking spray.

In a large pan over low to medium heat combine chocolate chips, sweetened condensed milk, and butter and let melt while string being careful to not burn. Once everything is melted add vanilla and mix well. Remove from heat and stir in marshmallows and nuts until mixed well. Pour into prepared pan and chill in fridge until set. Overnight is best because of how thick the fudge is.

Once set pull out of pan and place on cutting board. Cut into squares and serve.