These quick and easy Pickled Red Onions require only a few pantry ingredients and come together in minutes. They add bright acidity and crisp texture to tacos, burgers, sandwiches and salads — a small addition that transforms everyday meals.
Why This Recipe Works
Homemade pickled red onions are one of those pantry staples that make cooking more exciting. The quick-brine method softens the onion’s raw bite while preserving a satisfying crunch. The result is a bright, tangy condiment that layers flavor and texture into a wide range of dishes.
This recipe fits into busy routines: it uses minimal ingredients, cooks in minutes, and keeps in the refrigerator for several weeks. Make a jar at the start of the week to brighten lunches and dinners, or double the batch to share at gatherings.
Ingredients:
- Red onions: 1 large red onion (or 2–3 small ones)
- Vinegar: 1/2 cup white vinegar (or a mix of white and apple cider vinegar)
- Water: 1/4 cup to dilute the brine
- Salt: 1 teaspoon sea salt
- Sugar: 1/2 teaspoon granulated sugar (or maple/agave for a different sweetness)
- Bay leaf: 1 bay leaf (optional, but recommended)
Optional flavor additions: whole peppercorns, a smashed garlic clove, or a pinch of mustard seeds are all nice if you want more complexity.
How to make pickled red onions?
- Trim both ends of the red onion, cut it in half, then slice each half into thin half-moons. Transfer the slices to a bowl.
- In a small saucepan (about 1 quart), combine 1/2 cup white vinegar, 1/4 cup water, 1 teaspoon salt and 1/2 teaspoon sugar. Heat the mixture and bring it to a gentle boil.
- Add the onion slices to the hot brine and simmer for 3 minutes, stirring occasionally so the pieces soften evenly. If needed, press the onions down so they stay submerged.
- Remove the saucepan from the heat and pour onions and brine into a heat-proof bowl or measuring cup.
- Add a few ice cubes or cold water to bring the temperature down quickly, or allow to cool at room temperature until safe to handle.
- Transfer the onions, the bay leaf, and the liquid into a clean jar. Let the jar cool completely, then seal and refrigerate.
How to use pickled red onions?
Pickled red onions are versatile — they add brightness and crunch to many dishes. Try them on:
- Mexican-style dishes: tacos, nachos, taquitos
- Asian-inspired plates: spicy bowls, rice bowls, noodle salads
- Burgers and sliders for a tangy contrast
- Salads: greens, grain bowls, potato or pasta salads
- Sandwiches, grilled cheese, and charcuterie boards
Recipe FAQs:
Yes. White or yellow onions will work; they yield a different color and a slightly different flavor but still pickle nicely.
Stored in a sealed glass jar in the refrigerator, they keep well for up to three weeks. Use clean utensils to avoid contamination and keep the brine covering the onions.
More condiments from scratch recipes:
-
Roasted Garlic Aioli -
Tartar Sauce from Scratch -
Big Mac‑Style Sauce -
Homemade Ketchup
If you make this recipe, snap a photo and share it on Instagram — tag @crunchycreamysweet so your photo can be seen!
Quick Pickled Red Onions
Author: Anna Hinman
These quick pickled red onions are a simple, crisp topping for tacos, burgers, sandwiches and salads. Made with pantry staples in about 25 minutes total.
Prep Time: 7 mins | Cook Time: 3 mins | Cooling: 15 mins | Total: 25 mins
Servings: 6 | Calories: 12 kcal (approx.)
Ingredients
- 1 large red onion
- 1/2 cup white vinegar (or a blend with apple cider vinegar)
- 1/4 cup water
- 1 teaspoon sea salt
- 1/2 teaspoon granulated sugar
- 1 bay leaf (optional)
- Optional: peppercorns, garlic, mustard seeds
Instructions
- Trim the onion, halve it, and slice each half into thin half-moons. Place the slices in a bowl.
- Combine the vinegar, water, salt and sugar in a 1‑quart saucepan and bring to a boil.
- Add the onion slices and simmer for 3 minutes, stirring and pressing the onions down so they stay submerged.
- Remove from heat and pour onions and brine into a heatproof container. Add a few ice cubes or cold water to cool quickly.
- Transfer the cooled mixture and bay leaf to a clean jar. Seal and refrigerate once fully cooled.
Notes
- Keep refrigerated in a sealed glass jar for up to three weeks.
- Add whole peppercorns, a smashed garlic clove or mustard seeds for extra flavor.
- White or yellow onions may be substituted, though color and flavor will differ slightly.
- Nutrition values are estimates and will vary by product and portion size.
Nutrition (approx.)
Calories: 12 kcal | Carbohydrates: 2 g | Protein: 1 g | Fat: 1 g | Sodium: 389 mg | Fiber: 1 g