In a large, heavy-bottomed pot, melt butter over medium heat. Once melted, add in herbs and continue cooking, stirring constantly, until it begins to foam. Keep stirring until milk solids have caramelized.
Remove herbs, add in marshmallows, and stir constantly until melted. Turn off the heat and add in cereal. Stir to combine. Next, stir in your mini marshmallows.
Transfer mixture to a parchment lined 9x9 baking dish. Press into an even layer (I like to use a piece of parchment paper to press down since it’s still hot hot hot). Garnish with more thyme leaves and flaky sea salt. Allow to cool.
SOURCE:
https://www.tiktok.com/@saturdaytable/video/7439789754192842014?lang=en