Heat oil in a frying pan, add onion and garlic with some seasoning (Salt and Pepper) and the sugar, and fry for 5 minutes until softened.

Add paprika and stir well. Cook for 10-15 minutes until onion is caramelizing.

Add the vinegar and let it cook out for a few minutes.

Add Worcestershire sauce and tomato Ketchup, mix well and continue to cook for about 8 minutes until sauce has reduced to a dropping consistency. Add 1-2 tablespoon water if the sauce gets too thick.

Taste and adjust seasoning. Remove from heat and set aside.