Line two large baking sheets with parchment paper and set aside.
I recommend measuring out all your ingredients first because this recipe requires you to work quickly.
First, in a large dutch oven or heavy bottomed pan, melt your butter over medium heat.
Add 6 cups of mini marshmallows to the melted butter and stir continuously until completely melted. (make sure to keep a steady medium/low heat to melt them down but not burn them)
Once they are fully melted, remove the pan from the heated burner and immediately stir in vanilla extract and salt.
Next add in the rice cereal, 5 cups of wavy potato chips and 2 remaining cups of marshmallows. While the marshmallow mixture is still hot, work quickly to fold all the ingredients together until they are completely mixed and coated. (It’s perfectly fine to crush the potato chips as you mix so they end up being a bit more bite-sized)
Next, use a spoon to scoop out a heap (about 3 full tablespoons worth) of the warm rice krispie chip mixture and dollop it onto the cookie sheet, forming each one into a small mound. Continue this until you use all of the rice krispie chips mixture.
Let the cookies sit at room temperature to cool and harden, then serve.