“I finally got this recipe from my mom and made three batches of the stuff

Instructions:
Combine ingredients: In a saucepan over high heat, combine butter, sugar, and evaporated milk. Bring to a boil, whisking frequently.
Simmer: Reduce heat to medium and simmer for 5 minutes.
Add chocolate: Remove from heat and whisk in chocolate chips until melted.
Add marshmallow and vanilla: Whisk in marshmallow fluff and vanilla extract.
Pour into pan: Pour the mixture into a 9×9 inch baking dish lined with aluminum foil and sprayed with cooking spray.
Chill: Let the fudge sit in the refrigerator for several hours before slicing and serving.
Enjoy your homemade fudge!