Yield: 8-inch square pan
Line an 8-inch square baking pan with parchment paper, allowing excess paper to hang over the sides. This will help unmold the marshmallow treats. Set aside.
In a large sauce pot, melt butter. Add marshmallows and salt. Stir to combine until marshmallows have melted. Remove from heat and add cereal. Gently fold to combine until cereal is completely coated in marshmallow.
Transfer mixture to prepared baking pan. Press the cereal mixture into an even layer. Allow to cool to completely. Unmold cereal marshmallow treats from pan and cut into desired serving sizes.
Substitute in your favorite cereal: Cinnamon Toast Crunch, Kix, Cherrios, Apple Jacks, etc