Condiments by FlaxmanR

Question 1

Invented by the personal chef of King George IV, this sauce includes interesting and perhaps unexpected ingredients like raisin paste and orange puree (formerly marmalade). Reportedly named for George's declaration of its quality, what is this condiment now in use on hamburgers at a number of fast food chains, whose varieties include Bold and Spicy and Thick and Hearty?

A.1. Sauce