Fingerling Potato Salad With Chorizo, Onion, and Arugula Recipe

A mayo-free potato salad that exemplifies how to make the most of your ingredients.

By
Daniel Gritzer
Daniel Gritzer
Editorial Director
Daniel joined the Serious Eats culinary team in 2014 and writes recipes, equipment reviews, articles on cooking techniques. Prior to that he was a food editor at Food & Wine magazine, and the staff writer for Time Out New York's restaurant and bars section.
Learn about Serious Eats' Editorial Process
Updated April 15, 2024
A bowl of fingerling potato salad with chorizo, onion, and arugula.

Serious Eats / Vicky Wasik

Why It Works

  • Heavily salting the water leads to perfectly seasoned potatoes.
  • Pickling half the onion and sautéing the other half makes the most of one basic ingredient.

My wife, Kate, has a small list of foods she's convinced she doesn't like. An astute reader will have noticed that I've already revealed my bias: She's convinced. But I'm not.

I have long lived by the conviction that if there's a food I don't like, it usually just means I haven't had a good version of it yet. The foods I hate the most are the ones I'll return to over and over, trying to figure out what other people see in them. It's an approach that's served me well—following it, I've learned to love chicken feet, jellied eels, blood sausage, fish eyes, all kinds of insects, and entrails of almost every species and function. Some of my favorite foods now are ones that used to give me the willies.

You can imagine, then, how I reacted when Kate told me early on in our relationship that she didn't really like potatoes, that they were a waste of space on the plate. I was a total jerk. Instead of respecting her opinion, I made it my mission to serve her potatoes in every form until I'd worn her down. I wanted to force her to surrender, and I wouldn't be satisfied until she'd waved a little potato-skin flag in defeat.

This fingerling potato salad, dressed with olive oil and infused with the smoky flavor of Spanish chorizo, was my first offensive. Or, at least, a potato salad somewhat like it was—I don't typically keep recipes of simple dishes that I make up like this. The original may have had mushrooms, and I'm pretty sure it didn't have arugula.

Frankly, I'd encourage you to take a similar approach: Use this recipe as a collection of useful techniques, then do with them what you wish.

The first important technique helps cook the potatoes to utter creamy perfection: Start them in heavily salted cold water.

I can't emphasize the "heavily salted" part enough—the water should be unpleasantly salty. Kept whole, with their skins on, the potatoes will absorb a tiny fraction of all that salt; the rest will go down the drain with the water. Use too little salt, and you'll just end up with bland potatoes.

On top of the salt, add plenty of aromatics to the pot. You can use anything—onion, garlic, carrots, celery, rosemary, sage, thyme, and more. Here, I've tossed in several dried bay leaves. Normally you wouldn't want more than one or two in the pot, but I really wanted the bay flavor to come through in this, and, as with the salt, the skin-on potatoes will absorb only so much, so I went heavy.

The potatoes should be simmered very, very gently until a fork slides easily through them. The more gently you cook them, the creamier and more tender they'll be later. Then, let them cool slowly in the cooking water. This, too, reinforces that creamy texture.

The onions are another key component. Because this potato salad is so simple, I try to get the most out of each ingredient; in the case of the onion, I chop it up and rapid-pickle half of it in sherry vinegar, then reserve the rest to sauté.

Getting this kind of extra mileage out of a single ingredient can be a very powerful technique: One onion can deliver both raw crunch, with a bright explosion of vinegary tartness, and tender morsels that are golden and sweet.

For the chorizo, I start with the dry-cured, Spanish variety, not the raw, Mexican kind. When you're buying chorizo for this, try to find a younger, more tender version, not one that's older and firmer. That's because you're going to sauté it in olive oil, which will crisp it up and render some of its fat.

If it starts out too firm, it'll only get firmer, which could leave you with pieces of chorizo that are unpleasantly hard. Fortunately, young and tender chorizo tends to be less expensive than aged versions.

Cooking the chorizo in oil does a couple things. First, it deepens the flavor of the sausage as it browns, adding complexity to the dish. But it also infuses the oil with the smoky, porky flavor of the chorizo. I then use that oil to sauté half the onion, so all the flavors end up melding even more in the dressing.

Beauty shot of chorizo and potato salad.

Serious Eats / Vicky Wasik

So, did it work? Did I convince Kate that potatoes could be something special? I'm turning to her right now and asking. "Hey, Kate, what's your feeling about potatoes these days?"

"I like 'em. I really do."

I'll take it.

June 2018

Recipe Details

Fingerling Potato Salad With Chorizo, Onion, and Arugula Recipe

Prep 20 mins
Cook 50 mins
Active 60 mins
Total 70 mins
Serves 4 to 6 servings

Ingredients

  • 1 3/4 pounds (800g) fingerling potatoes

  • Kosher salt

  • 4 sprigs fresh oregano or thyme

  • 3 bay leaves

  • 1 medium (6-ounce; 170g) yellow onion, diced, divided

  • Sherry vinegar, as needed

  • 2 tablespoons (30ml) extra-virgin olive oil, plus more as needed

  • 4 ounces (115g) Spanish dry-cured chorizo, preferably younger and more tender, diced

  • 2 ounces (55g) arugula

Directions

  1. In a medium saucepan or saucier, cover potatoes with cold water. Add enough salt to make the water unpleasantly salty (don't worry, the potatoes won't end up too salty). Add oregano or thyme and bay leaves. Bring to a boil, then lower heat to a bare simmer and cook until you can easily slide a fork through the potatoes, about 25 minutes. (This is a very rough estimate; actual cooking time will vary with the size of the potatoes, so check them often.)

    Fingerling potatoes simmered in salt water with aromatics.

    Serious Eats / Vicky Wasik

  2. Remove potatoes from heat and let them cool in their cooking water.

  3. Meanwhile, place half the diced onion in a medium nonreactive bowl. Add just enough sherry vinegar to cover and set aside.

    Quick-pickling diced onion in sherry vinegar.

    Serious Eats / Vicky Wasik

  4. In a skillet, warm olive oil over medium heat. Add chorizo and cook, stirring occasionally, until lightly browned, about 6 minutes. Using a slotted spoon, transfer chorizo to a plate. Add remaining onion to skillet, increase heat to high, and cook, stirring frequently, until starting to brown, about 3 minutes; lower heat if onions threaten to burn at any point.

    Cooking chorizo and onion in olive oil, then tossing with boiled potatoes in a series of four pictures.

    Serious Eats / Vicky Wasik

  5. Drain potatoes and discard herbs. If potatoes are very small, you can leave them whole; otherwise, cut into halves or quarters. Transfer potatoes to a large bowl. Add chorizo and sautéed onion along with the cooking oil.

  6. Using a slotted spoon, transfer quick-pickled onions to bowl with potatoes; reserve vinegar. Toss to combine. Dress with more olive oil as desired, then add reserved vinegar, 1 tablespoon (15ml) at a time, tossing between additions, until desired flavor is reached. Season with salt, if needed.

    Adding sherry vinegar to fingerling potato salad.

    Serious Eats / Vicky Wasik

  7. Just before serving, add arugula and toss well. Serve.

    Mixing arugula leaves into a bowl of fingerling potatoes, sautéed onion, pickled onion, and diced chorizo.

    Serious Eats / Vicky Wasik

Special Equipment

Medium saucepan or saucier, large skillet

Read More

Nutrition Facts (per serving)
270Calories
13gFat
31gCarbs
8gProtein
×
Nutrition Facts
Servings: 4 to 6
Amount per serving
Calories270
% Daily Value*
Total Fat 13g17%
Saturated Fat 4g18%
Cholesterol 17mg6%
Sodium 561mg24%
Total Carbohydrate 31g11%
Dietary Fiber 3g11%
Total Sugars 3g
Protein 8g
Vitamin C 20mg102%
Calcium 31mg2%
Iron 1mg6%
Potassium 667mg14%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

More Serious Eats Recipes