Place your chocolate chips in the freezer while you prepare the recipe. Line a 9x13 pan with aluminum foil and spray it with non-stick cooking spray.

Spray a large bowl with non-stick cooking spray, and pour in cereal. Add 1 cup of the marshmallows to the cereal.

In a large microwave safe bowl, microwave the remaining marshmallows and they butter for 20 second intervals, until melted. Stir in salt and vanilla until smooth. Pour over the cereal.

Gently stir to coat. When coated, add chocolate chips and give a quick stir to incorporate. Stirring too much will cause the chips to melt.

Press into baking dish, and ;et set for 1 hour. Release foil from pan, and cut into squares.

Store in an air tight container. Best if consumed within a few days, or the cereal will begin to get soft.