Boil the potatoes: In a pot, bring salted water to a boil and cook 2 roughly chopped russet potatoes for 20 to 30 minutes (or until fork-tender).
Prepare the boxed mixes: Prepare 2 boxed mashed potato mixes according to package instructions, and set aside.
Mash the potatoes: In a bowl, add your boiled potatoes, 4 tablespoons of salted butter and 2 tablespoons of whole milk per potato and mash until desired consistency.
Combine: In a serving bowl, add your instant mashed potatoes and mashed potatoes mixture and stir to combine.
