In a deep frying pan over medium heat, melt butter then add onions and garlic. Cook until the onions are translucent.
Next, add the diced chicken, cooking until browned on both sides.
Add Worcestershire sauce, brown sugar, ketchup, salt, paprika, and 1 1/2 cups water to the pan. Stir until combined.
Reduce heat and allow to simmer for 20 minutes.
To thicken the sauce, combine flour with 1/4 cup cold water. Then pour slowly into the goulash, stirring until mixed through.
Serve over cooked egg noodles.