By Hedman Soto · Recipes · 10 min read

Mom taught me how to make tostones when I was 8, standing on a step stool next to her in our Aguadilla kitchen.

She showed me everything — how to pick the right plantain at the colmado, how hot the oil needed to be, how hard to smash without breaking. But the one thing she made me promise to never forget was the salt water trick. She did not call it a trick. She called it el paso que se olvida — the step everyone forgets. And in her words: "If you forget that step, you're making tostones para los gringos. If you do it, you're making them como dios manda."

I have watched a lot of people make tostones in the 30 years since. Restaurants in San Juan, Cuban abuelas in Union City, Dominican home cooks in the Bronx, food TV chefs in studios. Almost none of them brine the plantain. The handful who do are always Caribbean women over 60. The salt water trick is one of those pieces of cultural knowledge that did not make it into the cookbooks — and that is the entire reason I am writing this guide.

Tostones, patacones, plátanos verdes — they are all the same dish

Before we get into the recipe, the terminology. Across the Spanish-speaking Americas, this dish goes by different names.

• Tostones — Puerto Rico, Dominican Republic, Cuba.
• Patacones — Colombia, Venezuela, Ecuador, Panama, parts of Central America.
• Tachinos — an older Cuban term, less common today.
• Plátanos verdes fritos — the generic descriptor across Latin America.

The dish is the same: green plantain, sliced, fried, smashed, fried again. The technique is the same. The accompaniments differ — in Puerto Rico we eat them with garlic mojo or pernil drippings; Colombians serve them with hogao (tomato-scallion sauce); Cubans pair them with mojo criollo and roast pork. But the dish itself crosses every Caribbean and Latin American kitchen. If you grew up with any of these names, this recipe is yours.

What separates great tostones from good tostones

Most American tostones recipes go: cut, fry, smash, fry, salt, eat. That works. You will get a passable side dish. But there is a noticeable difference between tostones you grew up eating in a Puerto Rican household and tostones you order at a fusion brunch spot. The difference comes down to three things.

The plantain itself. Tostones are only good if the plantain is right. Deep green skin, firm to the squeeze, heavy for its size. If there is any yellow on the skin, the plantain is starting to ripen — sugars are developing — and you will get something closer to maduros than tostones. American grocery stores often sell plantains that are halfway between green and yellow because most American shoppers buy plantains for maduros. Go to a Latin grocery for tostones.

The oil temperature. Most home cooks fry at one temperature throughout. Wrong. The first fry should be gentle (325°F) — you are cooking the plantain through, not browning it. The second fry should be hotter (350°F) — you are creating the crisp shell. Skip the temperature change and you either get plantain that is burned outside and raw inside, or pale tostones that absorb oil and go soggy.

The salt water brine. The step most people skip. The step mom would never let me skip. See below.

Mom's salt water trick (the step most American recipes skip)

Here is what the brine actually does — and once you understand the why, you will never make tostones without it again.

Plantains are starchy. Almost all of the seasoning in a typical tostones recipe sits on the outside surface. The interior stays bland no matter how much salt you sprinkle on after frying. You can salt the top of a tostón until it is white, and the second bite — when you reach the inside — still tastes flat. That is the universal complaint about restaurant tostones in non-Latin restaurants. They look right, they crunch right, but they taste under-seasoned in the middle.

The salt water trick fixes both problems at the same time.

What seasons the inside: Between the two fries, after you have smashed the plantain flat, you dip it in salty water for 5 seconds. The starchy interior — now exposed by the smashing and slightly porous from the first fry — absorbs the salt water immediately. Five seconds is enough. Every bite tastes seasoned, not just the surface.

What creates the shatter-crisp crust: When the wet plantain hits 350°F oil for the second fry, the moisture flashes to steam. Tiny steam pockets form in the crust as it sets. The result is a crust with structure — the kind that audibly cracks when you bite it — instead of just a uniform crisp shell.

Pick the right plantain (this is everything)

I will repeat this because the recipe falls apart if this is wrong.

For tostones, you want plantains that are deep green, firm enough that you cannot dent them with thumb pressure, heavy for their size, and ideally still showing some of the rough corky texture on the stem end. If the plantain has even started to develop yellow patches, you are past the tostones window — that plantain will be too sweet, too soft, and it will mash apart when you smash it.

If you cannot find good plantains at your usual grocery, find a Latin market. Bodegas in Puerto Rican, Dominican, or Cuban neighborhoods turn over plantain inventory fast and tend to carry firm green ones because that is what their actual Latin customers ask for. The Latin grocery a few blocks farther than your usual store is worth the extra walk.

Garlic mojo dip — mom's three-minute version

Tostones are great alone, but tostones with garlic mojo are transcendent. Mom's mojo is a quick warm garlic-and-lime sauce, not the long-cooked mojo criollo Cubans serve with lechón. Three minutes from start to bowl.

Tostones across Latin America — how different countries do it

Same dish, slightly different traditions depending on which Latin culture is making them. Here is the breakdown.

The salt water brine is most strongly associated with Puerto Rican home cooking — though I have met Dominican abuelas who do it too. Cuban tostones traditions tend to skip it.

Pro tips from mom's kitchen

• Plantain ripeness is the #1 thing. If you remember nothing else, remember: deep green only.
• Do not skip the brine. It is the single most important step. I will keep saying it.
• Two different oil temperatures. 325°F for the first fry, 350°F for the second. Use a thermometer if you have one.
• Do not crowd the pot. Plantain pieces touching each other steam instead of fry. Work in batches.
• Season while hot. Chulería sticks better and the spices bloom more aromatic when the tostones are still steaming.
• Eat them immediately. Tostones lose their magic in 10 to 15 minutes. Build your meal around them, not the other way around.

What to serve with tostones

Tostones rarely show up alone. In our house they were a constant side dish — always next to something heavier and richer. Some pairings that have always worked.

• Pernil. The classic Sunday combination — crispy tostones with slow-roasted pork shoulder and a side of garlic mojo for dipping. See my full pernil recipe for the spread.
• Churrasco. Skirt steak, chimichurri, tostones, an ice-cold Medalla. The Friday-night plate.
• Fried chicken. Dominican-style with sazón and a squeeze of lime. The pairing every Caribbean culture agrees on.
• Habichuelas guisadas + arroz. Beans, white rice, tostones on the side, hot sauce on the table. The cheap meal that is also one of the best meals.
• Eggs at breakfast. Tostones topped with a fried egg, avocado slices, and hot sauce.
• Just garlic mojo. A weeknight snack while you finish making dinner.

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