Cebolete (Pickled Red Onions)
Imported from Instagram
1 hr 15 minEasy12 servings

Cebolete (Pickled Red Onions)

A crunchy and flavorful pickled red onion side dish, perfect for pairing with barbecue meats, sandwiches, and more.

Mise turned a cooking video on Instagram into this written step-by-step recipe — 8 ingredients, 5 steps, 1 hr 15 min, with a generated photo for every step.

Time75min
LevelEasy
Servings12
Method 5 steps
01

Slice the red onions into very thin half-moons using a sharp knife or a mandoline.

02

Transfer the onions to a sieve and pour hot water over them. This reduces the sharp bite of the onion. Let them drain well.

03

In a separate container, mix the vinegar, olive oil, salt, oregano, Calabrian chili flakes, and chopped parsley to create the marinade.

04

Place the drained onions into a jar, add all of the marinade, and mix well so the seasoning is distributed evenly.

05

Cover and let it rest for at least 1 hour before serving. For even more intense flavor, prepare it a day in advance and store it in the fridge.

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Notes

Cebolete offers a quick, crisp pickled relish that brightens rich dishes with sharp acidity and mild heat. Pouring hot water over thinly sliced red onions tempers their harsh sulfur notes without completely killing their structure, leaving them tender yet delightfully snappy. Combined with olive oil, vinegar, and herbs, the raw edge softens into a balanced, aromatic condiment.

Serve this relish alongside grilled meats, tucked into tortas, or layered over tacos. An hour of marinating allows the red onions to release their juices, turning the liquid bright pink while absorbing the fruity spice of Calabrian chili flakes and the earthiness of dried oregano.

Before you start

  • Aim for paper-thin onion slices so they soften quickly under the hot water pour. A mandoline guarantees uniform thickness that absorbs marinade evenly.
  • Do not skip draining the onions thoroughly after scalding. Trapped tap water will dilute the olive oil and vinegar base, rendering the relish bland.
  • Pour water that has just come off the boil over the onions. Tepid water fails to remove the harsh raw bite, while boiling water degrades their crunch.
  • Taste the marinade liquid before tossing it with the onions. The salt should taste slightly prominent to properly season the raw vegetables as they rest.

Swaps that work

  • Replace 0.0833333 tbsp Calabrian chili flakes with an equal amount of red pepper flakes for a drier, sharper heat.
  • Swap 15 ml of white vinegar for fresh lime juice to give the pickled onions a brighter, fresh citrus aroma.
  • Use dried Mexican oregano instead of standard dried oregano to introduce a citrusy, woodsy note to the pickling liquid.

Keeping it

Store the pickled red onions in a sealed glass jar in the refrigerator. They are ready after one hour of resting, but the flavor deepens after twenty-four hours. They will remain crisp and vibrant for up to two weeks chilled. Do not freeze this dish, as ice crystals destroy the onion cell walls, making them unpleasantly mushy upon thawing.

Questions

Can I make these pickled red onions ahead of time?

Yes, preparing them a day in advance improves both color and flavor. The acid penetrates the onions fully overnight, turning them bright pink and rounding out the raw sharp bite while keeping their crisp texture intact in the fridge.

Why are my pickled onions soft instead of crunchy?

Soaking the onions in hot water for too long instead of quickly rinsing them will cook the vegetable tissue. Make sure to pour hot water over the sieve immediately rather than letting the onions sit submerged in hot liquid.

Is this pickled onion side dish very spicy?

It carries a mild, warm background heat rather than an intense burn. The small amount of Calabrian chili flakes infuses the oil and vinegar base without overwhelming the natural sweetness of the red onion.

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