BOB PUTNAM:
Good afternoon. I have located this one clone for you. I have never made this recipe however.

Fry 4 or 6 hamburgers & use the meat rendering in combination with the balance of the recipe.

1 medium sized onion fine dice
1 cup ketchup
1 TB Worchestshire sauce
1 TB prepared yellow mustard
Seasoning to your taste.

Mix all together and apply to the hamburgers.

~CHEF DUNASK.