Now enough with the superlatives. It’s really no use since this sort of thing cannot be put into words. Let’s get to browning:
4 ounces (1/4 pound or 1 stick) unsalted butter, plus extra for the pan
1 10-ounce bag marshmallows
Heaping 1/4 teaspoon coarse sea salt (feel free to add more to taste)
6 cups Rice Krispies cereal (about half a 12-ounce box)
Butter (or coat with non-stick spray) an 8-inch square cake pan with 2-inch sides.