This sandwich is the holy grail of grilled cheeses. It requires a lot more effort than a regular grilled cheese but boy is the pay off worth it. The spectacular taste of French onion soup all contained in sandwich form. It was so good that the second I finished mine I looked over to my boyfriend to see that he had half of his left. I almost ripped it right out of his hands it was so good. Now sadly this sandwich doesn’t come cheap as the Gruyère and proper bread can set you back a fair whack, about 20,000. It also takes a good 30 minutes to caramelize the onions, but every second spent by the stove will be worth it when you bite into this glorious creation.
4 slices of really nice bread
120g of Gruyere cheese
1 glug of olive oil
1/2 a stick of butter
1 tablespoon of white sugar (optional)
Start by chopping your onions into thin slices. Heat your frying pan to medium then add a glug of olive oil and a a knob of the butter. When the butter has melted add the onions.They will take around 30 minutes to caramelize so be patient. Never leave your pan’s side even for a second. Stir them regularly to make sure they are getting an even coverage. They should be golden brown when they are done but not burned. While your onions are cooking, grate your Gruyère. I find that the Korean onions don’t brown as much as I would like, so if you want add a tablespoon of white sugar about 20 minutes in to help them out a little. When the onions are done remove them from the pan and place in a bowl. Butter one side of each piece of bread Then put two slices of the bread butter side down in your frying pan. Then top each slice with a quarter of the grated cheese.
Then add the caramelized onions.
Finally add the last of the cheese and place a slice of bread on top butter face up. Heat your pan to medium, and cook for a few minutes on one side before carefully flipping it over to cook the other side. The bread should be golden brown and the cheese should have melted. When they are ready, serve and devour. Voilà the best cheese sandwich you are ever likely to have.