01 -
Spray a 9×13-inch baking dish with non-stick cooking spray and set aside.
02 -
In a large pot over medium-low heat, add the butter and 1/2 cup of caramel sauce. Stir constantly until the butter melts.
03 -
Add the kosher salt and marshmallows, stirring until the marshmallows are fully melted and the mixture is smooth. Remove from heat.
04 -
Spray a rubber spatula with non-stick spray to prevent sticking.
05 -
Fold in the Rice Krispies cereal with the spatula until well-coated with the caramel and marshmallow mixture.
06 -
Transfer the mixture to the prepared baking dish, pressing it into an even layer.
07 -
Allow the bars to cool to room temperature, about 30 minutes to an hour.
08 -
Drizzle the remaining caramel sauce over the cooled bars and sprinkle with kosher salt for garnish before cutting and serving.