Salbutes belong to the evening in Yucatán. They appear at loncherías and plaza stands once the heat has dropped, sold by the piece alongside panuchos, and they are the thing people order two or three of while deciding whether to order more. They also turn up at family parties and at long Sunday lunches, usually on the same platter as their bean-filled cousin so everyone can take what they prefer.

The construction is simple: a small round of corn masa, pressed thin, dropped into hot fat and pushed under the surface until it inflates. The puff is steam. A moment later the round is lifted out, still soft and pliable rather than brittle, and piled with shredded turkey or chicken, shredded cabbage or lettuce, tomato, avocado and a fistful of red onion pickled in sour orange. Habanero goes on the table, not on the salbute, so each person decides.

The difference between a salbute and a panucho is the bean. A panucho is split after frying and filled with refried black bean paste, which makes it denser and slightly sweeter. A salbute is left hollow, which makes it lighter and lets the fat and the masa taste of themselves. Turkey is the older topping and still the better one if you can get it, since the poaching broth is used to keep the meat moist.

What people get wrong is texture. A salbute is not a tostada and it is not a chalupa. It should give when you bite it, with a thin crisp shell over a soft interior, which means it has to be eaten within a few minutes of leaving the oil. The other common error is letting the pressed rounds sit and dry out before frying. A dry surface will not puff. Press and fry in the same movement, one or two at a time, and accept that the cook eats last.