The drink is coffee and the dessert is honey bread cake (i dont remember what its called)
Coffee is unlocked when you talk to The Boss AFTER you save the shark (In the underground city).
Honey dessert is unlocked while trying to recruit Bread. After befriending him and offering him jam bread, Snow will eventually say that he scavenged honey while getting rid of a bee nest (honey is the key ingredient for the dessert). The dessert should be unlocked after you get the honey.