Dessert

Line an 8-inch-square baking pan with wax paper or foil and coat with non-stick spray
Pour 1/2 cup miniature marshmallows into the bottom of the lined pan
Combine chocolate chips and peanut butter in a microwave-safe bowl and microwave in 20-second intervals, stirring until melted
Stir in vanilla extract until smooth
Reserve 2 tablespoons of the chopped peanuts and set aside
Fold 1 1/2 cups miniature marshmallows and the remaining chopped peanuts into the chocolate mixture
Transfer the chocolate mixture into the prepared pan, spread into an even layer, and top immediately with the reserved chopped peanuts and mallow bits or additional miniature marshmallows
Refrigerate until set, about 4 hours
Remove the fudge from the pan and peel off the wax paper
Cut the fudge into bite-sized pieces and serve