Quick Pickled Onions
Crisp, tangy, and shockingly pink, these quick pickled onions come together in minutes. Thin slices of red onion soak in a simple vinegar brine with a touch of sugar and salt, transforming into a vibrant, versatile condiment. Perfect for tacos, burgers, salads, or anywhere you need a bright pop of acidity.
For 8 servings
- prep · ~3 min
Slice the red onion.
Peel and thinly slice the red onion into half-moons. Separate the rings with your fingers and pack them tightly into a clean heatproof jar.
TIPA mandoline makes quick, even slices, but a sharp knife works just as well. - boil · ~3 min
Make the pickling brine.
In a small saucepan, combine the white vinegar, water, sugar, and salt. Bring to a boil over medium-high heat, stirring until the sugar and salt dissolve completely.
- assemble · ~1 min
Pour the brine over the onions.
Carefully pour the hot brine over the sliced onions in the jar, making sure they are completely submerged. Press them down gently with a fork to release any air bubbles.
- rest · ~30 min
Let the onions rest and pickle.
Let the jar cool to room temperature for about 30 minutes. The onions will soften and turn bright pink. Cover and refrigerate until ready to use. They taste best after chilling for at least 1 hour.
TIPThe flavor deepens overnight. For best results, make them a day ahead.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Use a mandoline for uniformly thin slices that pickle evenly and look beautiful.
- 2Pack the onion rings tightly into the jar so they stay submerged after the brine is added.
- 3Let the brine cool slightly before pouring if using a thin glass jar to avoid thermal shock.
- 4Press the onions down with a fork after pouring brine to release trapped air bubbles.
- 5For the most vibrant pink color, let the onions sit at least 1 hour before serving.
- 6Store pickled onions in the refrigerator; they keep for up to 2 weeks and deepen in flavor.
Adapt it for your goals.
Spicy
Add 1 sliced jalapeño or a pinch of red pepper flakes to the jar before pouring the brine for a kick of heat that pairs perfectly with tacos and sandwiches.
herb infusedHerb-infused
Tuck a sprig of fresh dill, a few black peppercorns, and a clove of garlic into the jar for an herbaceous, aromatic pickle reminiscent of Eastern European flavors.
low sugarLow-sugar
Reduce sugar to 1 teaspoon or omit entirely for a sharper, more traditional vinegar-forward pickle that works well in savory salads and grain bowls.
color swapColor-swap
Replace red onion with thinly sliced shallots or sweet white onions; the flavor will be milder and the color pale, but the pickling method stays identical.
warm spiceWarm-spice
Add 1/2 teaspoon of coriander seeds and 1 star anise to the brine for a warm, aromatic twist that complements roasted meats and cheese boards.
Why this is on our healthy list.
Low in Calories
Each serving of these pickled onions provides vibrant flavor with minimal calories, making them an ideal way to season dishes without adding fat or heavy sauces.
Rich in Antioxidants
Red onions contain anthocyanins, the compounds responsible for their deep purple color, which act as antioxidants that help protect cells from oxidative stress.
Supports Digestion
The natural vinegar in the brine introduces acetic acid, which can aid digestion and help balance the body's pH levels when consumed as part of a meal.
Sodium Controlled
With just a pinch of salt per batch, these pickled onions offer a low-sodium alternative to store-bought pickles, giving you control over your salt intake.
Frequently asked questions
This can happen if the onions are over-processed or if the vinegar is too strong. Stick to the recipe's vinegar-to-water ratio and let them pickle at room temperature only until cool to preserve a bright pink hue.
