Frosted Flakes Marshmallow Treat Bars

Line a 9x13-inch baking dish with foil or parchment paper and spray with baking spray. Set aside.

Place a large pot on the stovetop and on medium heat, melt the butter. Once butter has melted completely, measure out seven cups of mini marshmallows (you should still have about 1 cup of marshmallows left in the bag---save those for the end!) and add the mini marshmallows to the melted butter. Stir the marshmallows and butter continuously, until all of the marshmallows have completely melted.

Once all the marshmallows have melted, remove the pot from the stovetop and stir in the vanilla extract. Add the white chocolate chips to the marshmallow mixture and stir the chips until they are mostly melted into the mixture. Add the Frosted Flakes to the marshmallow mixture, one cup at a time, making sure each cup is fully mixed into the marshmallow mixture before adding the next cup. When adding the last cup of Frosted Flakes, add the remaining mini marshmallows from the bag, into the mixture. Stir until combined. The mini marshmallows added at the end won't melt completely, which makes for a chewy, marshmallow-y treat!

Pour mixture out into prepared baking pan and gently use your hands or rubber scraper to gently distribute the mixture evenly into the pan. If I use my hands, I will spray my hands with baking spray so my fingers don't stick to the mixture.

Let bars sit at room temperature for 1-2 hours to cool completely, before slicing into desired sized slices.