Chop jalapenos and iceberg lettuce. Mix all sauces in a bowl and add jalapenos and iceberg. Mix well. Sauce is ready set aside.
Cut onion in slices. In a frying pan heat butter, add onion and fry them for a min. Add brown sugar and let onion simmer for 8-10 minutes. Once brown and soft, dish them out and set aside.
In a bowl add minced beef, Worcestershire sauce, egg yolk, Parsley/ coriander, salt, black pepper, grated garlic and chili garlic sauce. Mix well and make patty. While making beef patty, keep your hand gentle, don’t press very hard and once patty is made press lightly in the middle (making a soft well). Make desired size patty. From 500gms 3 large and 4 medium size patties can be made. Refrigerate beef patties for 10-20 mins.
Heat Oil in a grill or pan fry patty for 5-6 mins each side. Don’t flip again and again. When one side is done then flip and let other side cook. Add cheese slice on fried side so the cheese melts and add flavor to the patty
In assembling you can add any vegetable of your choice and assemble burger any ways you like. How we did is: On bun spread mayonnaise, ice burg lettuce leaf, tomato slices, beef patty with cheese, fusion sauce, caramelized onion or raw onion slices, jalapenos slices and top bun.