These Sheet Pan rice krispies truly are the best rice krispie treats! With each bite, there's a perfect contrast between the crispiness of the cereal and the chewiness of the melted mini marshmallows. You'll love nuttiness from the brown butter and how the addition of sweetened condensed milk keeps them soft, chewy, and gooey for several days! Each bite of these rice krispies takes you on a journey to nostalgia and you'll have to much fun decorating each quadrant with your favorite toppings. These are so ideal for parties or serving a crowd and simple to transport right on your sheet pan. These rice krispies are pure bliss that transports you back to simpler times!