Line a 9x13 pan with foil and spray with cooking spray. Set aside. Set aside 1-2 cups of the mini marshmallows.
In a large pot, melt the butter over low heat. Once the butter is melted start to whisk constantly. First the butter will begin to foam, then after a couple of minutes it will begin to brown on the bottom of the saucepan.
Add all but the reserved cup of marshmallows and cook on low, stirring constantly until mostly melted, a few small lumps here and there are ok.
Remove from the heat and add the vanilla and salt and stir to combine.
Add the cereal and stir 2-3 times then add the reserved marshmallows and continue to stir until the cereal is coated. A few chunks of marshmallows will remain.
Scrape the mixture into the prepared pan and using lightly greased or barely wet hands, lightly press the mixture into the pan. Let cool for at least 20 minutes before slicing. Enjoy!
There are several other brands that make certified gluten free crispy rice cereal. Be sure there is no malt flavor listed in the ingredients so the cereal is gluten-free. Rice Krispies in the blue box are NOT gluten-free.Here are some brands of gluten-free crispy rice cereal:
Malt O Meal (top choice)
Wegmans (top choice)
Erewhon (top choice)
Aldi (top choice)
Nature’s Path (I don’t recommend this one as much as I don’t like the texture)