How to cook lentils and choose the right variety for your recipe

July 2024 · 7 minute read

Lentils don’t always have the most exciting reputation.

People tend to associate the tiny pulse with dark brown, mushy and bland soups, says cookbook author Crescent Dragonwagon, the source of a very not bland Greek Lentil and Spinach Soup With Lemon, below, that became one of our most popular recipes of 2020.

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Other cultures seem to have a better grip on how wonderful lentils are, especially in India, where dal (the term can refer to the lentils themselves or the dish made with them) is a staple. “The French also do pretty nice things with lentils,” Dragonwagon says. Lentils do in fact have a lot going for them, including being packed with protein, cheap and nonperishable. They’re also incredibly versatile.

“They’re sort of like Cinderella when she has the cinders all over,” Dragonwagon says. “We get to be the fairy godmothers to give her the pumpkin carriage and the pretty dress.”

So how do you best bring the magic to these little powerhouses? Read on.

The basics. In “On Food and Cooking,” Harold McGee says that lentils are probably the oldest cultivated legume. He also explains another fun bit of trivia: The Latin word for lentil is “lens,” which, yes, is what in the 17th century provided the name for the double convex (both sides curving outward) piece of glass we know today.

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Size-wise, McGee says, lentils can be divided into two groups: Those with larger, flatter seeds (5 millimeters or more) and smaller, rounded ones. Because they’re so small on the whole, lentils of all types cook relatively quickly, especially compared to other legumes.

“The New Food Lover’s Companion” by Sharon Tyler Herbst and Ron Herbst suggests storing lentils in an airtight container and using them within a year. If nutrition is what you’re after, the book notes that lentils “have a fair amount of calcium and vitamins A and B, and are a good source of iron and phosphorus.”

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Be sure to pick over and rinse lentils before using, as you can occasionally come across pebbles or other debris. Cooked lentils can be stored in the refrigerator for a few days, according to Raghavan Iyer in “660 Curries,” or frozen for up to a month.

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Know the types. Dragonwagon says that lentils, and legumes in general, are often pretty interchangeable. Regarding which one you choose for a recipe, “It’s primarily a texture thing and a tradition thing.” You can always adjust the cook time or the point at which you add the lentils if you’re changing up the variety."

Food editor and legume devotee Joe Yonan, author of this year’s cookbook “Cool Beans,” breaks down lentils into four main categories:

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To soak or not to soak. “I don’t soak lentils, as a rule,” Dragonwagon says. In her experience, old lentils, or lentils you’re not sure the age of, won’t cook better after soaking. She’s found they just never achieve the right creamy texture. Will it be catastrophic if you really want to soak? No (Madison, for her part, says she thinks they taste better and cook faster), though Dragonwagon says typically it’s best to just follow what the recipe instructs.

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How to cook. Dragonwagon says it can help to keep in mind a couple of equivalencies. About 2 cups of dried lentils weigh 1 pound and will yield about 6 cups when cooked.

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You don’t need much else other than a pot and water to make a batch of lentils. “You needn’t be fearful about adding salt at the beginning of their short cook time,” Madison says. “In fact, this helps bring out their flavors.” You can infuse the lentils at the beginning with other flavors too, such as onions, spices and dried herbs (bay leaves in particular). Using broth instead of water is an option, as well.

Given their quick cook time, pressure cooking lentils won’t necessarily save you that much time, especially when you take into consideration the minutes budgeted to letting the multicooker (i.e. Instant Pot) come up to pressure and allowing for the pressure to partially release at the end. That’s not to say you can’t do it. The Barbecue “Baked” Lentils, shown above, are a great example (they can also be made in a slow cooker or Dutch oven).

How to use them. Diminutive size and speedy cooking mean lentils can easily be incorporated into dishes where they seamlessly cook along with other ingredients. Dragonwagon likes to cook them with potatoes and winter squash. Soups and stews are obvious choices, such as One-Pot Lentils and Vegetables and As You Like It Lentil Soup. This Red Lentil and Bulgur Mash pairs the pulses with a grain that boasts a similar cook time.

Consider lentils as a crunchy garnish. Cook them on the stove top, dry and then toss with oil and spices before transferring to the oven. You’ll find that technique in the Roasted Radishes, Potatoes and Crispy Lentils recipe pictured above.

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It’s easy to embrace the earthy flavor of lentils by combining them with more earthy flavors. Dragonwagon suggests trying sweet and sour flavors, noting that Steve Sando of heirloom bean company Rancho Gordo makes a bean salad with pineapple vinegar. Similarly, she says salsa or vinegar are great ways to incorporate contrasting acidity, with yogurt or sour cream excellent options as well. Those two can also provide some richness in the form of fat. “A little bit of fat plays on your tongue nicely with lentils,” according to Dragonwagon. A last-minute drizzle of extra-virgin olive oil accomplishes the same thing but with a pleasantly bitter edge.

More from Voraciously:

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