This insanely satisying cheeseburger is packed with a tender, juicy beef patty, melted cheese, caramelised onions, pickled jalapenos and a secret burger sauce, all housed between two buttered Brioche buns. It's perfect to serve at a family dinner or grilling party.
Mix all patty ingredients together. I made balls measuring around 140g (5oz) each for my 8 cm (3") wide buns Put a ball on a small square of butter paper. Put another square of butter paper on top. Press with a heavy pot to form a patty. Or spread with your fingers. The patty should be 2½ cm (1") wider than your bun and of around 1¼ cm (½") thickness.
Heat oil in a pan. On medium high heat put the patties. Add the sliced onion in the same pan in the empty spaces, they will absorb all the juicy flavours. Crackle some salt and pepper on onions.
Fry the patties for 2-4 mins (depending on how 'done' you like your beef) then flip. Turn over the onions too. Add the butter. Cook the other side for 2-4 mins too. Take the onions out as soon as they are slightly charred and keep aside. Don't burn.
Put a cheese slice on each patty when they are 90% cooked. Turn off heat and cover pan to melt the cheese.
Mix the sauce ingredients and set aside.
Wipe the pan with a kitchen paper towel, melt some unsalted butter and toast the buns until golden.
To assemble, start with the bottom bun, slather 1-2 teaspoon of burger sauce, place lettuce, put 2-3 tomato slices, place the patty, spread the caramelised onions, crackle a dash of sea salt and black pepper, add pickled jalapenos according to your taste and drizzle 1-2 tablespoon of burger sauce before placing the top part of the bun.
For the juiciest burgers use 80% ground beef with 20% fat. However, you can still make this recipe with lean beef or veal. Add an egg in the patty mixture to retain some moisture then.
Don't overcrowd the pan while cooking the patties. Ideally cook two at a time with one sliced onion around it.
I used Brioche buns since their sweet flavours gels wells with this savoury burger. You can opt for any kind of soft buns.
If you are using bigger sized buns adjust the size of your beef otherwise you will end up with an insufficient patty for your burger.
Customise the toppings of this Ultimate Cheeseburger by switching up the cheese, adding crispy fried onions and playing with the variety of pickles.
Swap up my homemade burger sauce with good ol’ BBQ sauce or only mayo and mustard.