You’re craving pasta — but whoosh! All the boxes have flown off the shelves. Next you crave chocolate treats, so you bake — chocolate chip cookies, brownies, Brazilian chocolate cake. You run out of flour, and there’s no more to be had at the store (whoosh!). Eggs are nowhere to be found (whoosh!).

But there’s one fabulous comfort ingredient that doesn’t seem to be out of reach — yet, anyway: masa harina, the corn flour made from limewater-soaked dried corn kernels that is also known as maseca. Just mix it with warm water, give it a stir, and it instantly becomes a dough that you can turn into tortillas. Or sopes.

For me, it has come in handy half a dozen times in the last couple of weeks.

We craved huevos rancheros, but lacked corn tortillas. Out came the tortilla press; in ten minutes we had tortillas — which I fried, topped with fried egg, smothered in salsa ranchera. Craving satisfied.

Leftover roast chicken, chopped onion, cilantro and salsa verde suggested a taco lunch; masa harina to the rescue.

And at our sheltering-in-place happy hour a few evenings ago, three perfectly ripe avocados begged to become guacamole. We thought we had everything we needed: cilantro, white onion, half a tomato, two limes, salt and a single, solitary serrano chile. However — and this could have been a deal-breaker — no tortilla chips for dipping.

Maseca saved us once again! We mixed up some masa, flattened it in the press, laid the discs on the griddle, then into the tortilla basket those golden babies went. I cut them into sixths, heated a pan of oil and started deep-frying: something I hadn’t done in ages. Sea salt ground to super-fine in a mortar was the finishing touch, and wow — our happiest happy hour to date.

I’ve used every supermarket brand of masa harina, and all have worked fine. But recently I fell in love with the organic masa harina produced by Bob’s Red Mill. A wee bit coarser than the supermarket brands, it produces tortillas with a little more texture, and lovely deep corn flavor.

Whatever masa harina you use, you’re going to be happy. Make chips. Make tortillas. Make tacos.

When I’m feeling a little more ambitious, I’ll try making tortillas without using the press (to aid those of you who don’t have one). And soon we’ll do a sopes story. Meanwhile, tortilla presses, which during normal times you can pick up at your local Mexican supermarket, are easy to buy online.

There’s never been a time when handmade tortillas are more appealing or useful. Wrap any kind of stewy-saucy leftover in one, or serve them with a batch of chicken chile verde. Boil up a pot of pinto beans. (or open a can), add some grated jack and cilantro and you’ve got vegetarian taco event. Put out salsa, cilantro and diced onion, along with leftover chicken, beef, pork or lamb, and you’ve got a taco party.

Oh, and don’t forget the Taquería Carrots.