If you are looking for "lembas," shame on you. That's how lembass came about, after all. It's a misspelling of the fictional waybread from Lothlórien in the Lord of the Rings fandom. Lembass is an edible substance, but does not have the strengthening properties of its canonically correct counterpart. Sticklers for accuracy will note that lembass tends to smell like fish and a bite will certainly not keep an agent on their feet for a whole day.