Toasted Marshmallow K-Bars

1. Line a 9×13 inch pan with parchment paper. Preheat the broiler.2. Add the butter and peanut butter to a large pot set over medium heat. Let the butter melt into the peanut butter. Turn the heat to low. Add the mini marshmallows and stir until melted, about 5 minutes. Remove from the heat.3. Mix in the cereal. 4. Arrange the regular marshmallows on a baking sheet. Broil 1-2 minutes, until toasted. Watch closely, the marshmallows will toast FAST. Mix the toasted marshmallows into the cereal. Immediately transfer the mixture to the prepared pan, spreading it evenly and packing it in tightly. 5. Pour over the chocolate. Sprinkle with sea salt (if desired).6. Chill in the fridge until firm, at least 1-2 hours. Cut into bars. Enjoy!