Start with boneless NY Stripe
Cut off fat part as this won't work with the mandalin
Set your mandalin to 1/8 size
Now standing your steak straight up, start cutting pieces of the steak
Next dice up a whole onion and throw onto your griddle until golden brown
Add your onions to a bowl and save for later
Now start with the cheese whiz. I used 1 pack of cheddar cheese
The trick it so bowl water in a pot under the cheese so you don't burn it
Hint - put the cheese in the microwave for 15 seconds before (I didn't do this but learned I should have)
Continue melting to almost liquid form. It took me around 30 minutes
As that is continuing to melt add your shredded meat to the griddle
Season with only salt and pepper and good until your liking
Add back the onions and cheese whiz then lay the bread ontop
Leave the beard on for 2 minutes and it will get moist from the juices and cheese
Use your spatula and flip
Enjoy :)