Step 1

Line a 9×9 pan with parchment paper and coat lightly with nonstick spray. Set aside.

Step 2

Melt the butter in a large saucepan over low heat. Add in 6 cups of the marshmallows, salt, and vanilla and stir constantly until melted. Remove the pan from the heat.

Step 3

Stir in the Cinnamon Toast Crunch, Rice Krispies, and remaining marshmallows until coated in the marshmallow mixture.

Step 4

Press evenly into the pan and allow to cool completely before cutting into bars.