2Mix all sauces in a bowl and add jalapenos and iceberg.
3Mix well. Sauce is ready, set aside.
4Cut onion in slices.
5In a frying pan, heat butter, add onion and fry them for a min.
6Add brown sugar and let onion simmer for 8-10 minutes.
7Once brown and soft, dish them out and set aside.
8In a bowl add minced beef, Worcestershire sauce, egg yolk, parsley/coriander, salt, black pepper, grated garlic and chili garlic sauce.
9Mix well and make patty.
10Make desired size patty. Refrigerate beef patties for 10–20 mins.
11Heat oil in a grill or pan, fry patty for 5-6 mins each side.
12Add cheese slice on fried side so the cheese melts and add flavor to the patty
13Spread mayonnaise on the bun, add iceberg lettuce leaf, tomato slices, beef patty with cheese, fusion sauce, caramelized or raw onion slices, jalapenos slices and top bun.