01 -
Warm up your cast-iron pan on low heat. Slice your bread about 1/2-inch thick and shred both kinds of cheese
02 -
Put a thin layer (1 teaspoon) of mayo on one face of each bread piece
03 -
Drop butter in your warm pan, place bread with mayo facing down, stack all cheese on top, then cap with second slice, mayo facing up
04 -
Put a lid on and let it cook for 2-3 minutes until you see a nice golden crust forming
05 -
Carefully flip your sandwich, cover again and cook about 2 minutes until your cheese gets gooey and the other side turns golden
06 -
Slice it corner to corner and eat right away while the cheese is still stretchy