Andi Oliver (during prep): "Now for the puree that he'll shape into a gold medal. Cal's cooking artichoke in oat milk. He'll also be barbecuing some more artichokes."

Andi Oliver (later): "Artichokes drained, Cal creates a puree, fills metal molds, and freezes."

During plating ...

Chef Cal: "I'm putting barbecued artichoke, chopped up, seasoned, into a bowl. Some pickled wild garlic capers through there." 

Andi Oliver: "Next, partly frozen medals of artichoke puree." 

Chef Cal: "They'll just defrost in the warm bowl now. And then we'll get the gold leaf over the top."

Andi Oliver: "Finally, Cal's gold medal, broth, bread (stamped with Olympic logo) and seaweed butter, is served."

The concept is that when the broth is poured over the gold medal, the gold leaf melts.