pickled vegetables, quick recipes, easy sides, vegetarian recipesThe first time I tasted pickled red onion was during a taco night at my friend’s house. The vibrant color and zesty flavor burst into my mouth like a confetti explosion of taste. I realized right then that these tangy treats would become a staple in my kitchen.

Fast forward to today, and I find myself slicing up those beautiful purple bulbs for everything from salads to sandwiches. Honestly, if you haven’t experienced the magic of pickled red onion yet, you’re doing your taste buds a disservice. Don’t worry; I’m here to guide you through creating this culinary delight that will elevate any dish it touches.
Why You'll Love This Recipe
- This quick recipe makes meal prep a breeze while offering a burst of flavor that can transform any ordinary dish into something extraordinary.
- Customize the spices based on your mood or meal theme for endless variations.
- The vibrant color adds visual interest to your plate and makes it Instagram-ready in seconds!
- Perfect for tacos, salads, or simply snacking straight from the jar!
I once surprised my family with homemade tacos topped with these bright beauties, and the reactions were priceless—everyone went back for seconds!
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
- Red Onions: Choose firm onions with no soft spots; their sweet flavor is perfect for pickling.
- Apple Cider Vinegar: This adds a tangy kick; feel free to experiment with different vinegars!
- Water: Use filtered water for the best results; it helps balance the acidity.
- Granulated Sugar: Just a touch enhances the natural sweetness of the onions; adjust according to taste.
- Salt: Use kosher or sea salt; it’s essential for brining without leaving an aftertaste.
- Spices (Optional): Add peppercorns or bay leaves for extra flavor; creativity is encouraged!
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make It Together
Prepare Your Onions: Start by peeling your red onions and slicing them into thin rings. Aim for about 1/8-inch thickness so they pickle evenly.
Create the Brine: In a saucepan over medium heat, combine apple cider vinegar, water, sugar, and salt. Stir until sugar dissolves completely; it’ll smell irresistible!
Add Optional Spices: If you’re feeling adventurous, toss in some whole peppercorns or crushed garlic cloves at this stage. They add depth to your brine.
Pour Over Onions: Place the sliced onions in a clean glass jar and carefully pour the hot brine over them until fully submerged. Watch as they begin to change color!
Cool & Refrigerate: Let your jar cool at room temperature before sealing it tightly and placing it in the fridge. The flavors deepen significantly after 24 hours but can be enjoyed sooner!
Strongly consider keeping these tangy treasures on hand—they’ll last up to two weeks in the refrigerator (if they last that long). Sprinkle them on tacos or mix them into salads for an instant upgrade!
You Must Know
- Pickled red onion elevates any dish with its vibrant color and tangy flavor.
- It’s a quick, fun way to add crunch and zing, making even the simplest meals feel gourmet.
- You can enjoy it on tacos, salads, and sandwiches for that extra pop.
Perfecting the Cooking Process
Start by slicing your onions thinly; this helps them pickle faster. Then combine vinegar, sugar, and salt in a pot over medium heat until dissolved. Pour this mixture over the onions in a jar and let them cool.
Add Your Touch
Feel free to add spices like cumin or peppercorns for an extra kick. If you love a hint of sweetness, toss in some sliced jalapeños or a dash of honey to create your unique twist.
Storing & Reheating
Store pickled red onions in an airtight container in the fridge for up to two weeks. They don’t need reheating; just grab a spoon and enjoy their delightful crunch straight from the jar.
Chef's Helpful Tips
- For perfect pickled red onions, ensure your vinegar is fresh; old vinegar loses its punch.
- Slice onions uniformly for even pickling results.
- Lastly, allow at least 30 minutes for them to marinate before tasting for optimal flavor.
Creating these tangy delights reminds me of my friend Sam’s taco night extravaganza. He insisted on adding pickled red onions to every dish, and I was skeptical until I tasted them—game changer!
FAQ
What is the best type of vinegar for pickling red onions?
Apple cider vinegar adds a nice tang; white vinegar works too if you prefer milder flavors.
How long do pickled red onions last in the fridge?
They typically last up to two weeks when stored properly in an airtight container.
Can I make pickled red onions without sugar?
Yes! Omit sugar for a tart flavor; just adjust salt according to taste.

Quick and Easy Pickled Red Onions
Elevate your meals with this vibrant and tangy pickled red onion recipe, perfect for salads, tacos, and more. Simple to make and bursting with flavor!
- Total Time: 15 minutes
- Yield: Approximately 4 servings (1/4 cup each) 1x
Ingredients
- 2 medium red onions, thinly sliced
- 1 cup apple cider vinegar
- 1 cup filtered water
- 2 tbsp granulated sugar
- 1 tbsp kosher salt
- Optional: Whole peppercorns or bay leaves for added flavor
Instructions
- Peel the red onions and slice them into thin rings (about 1/8-inch thick).
- In a saucepan over medium heat, combine apple cider vinegar, water, sugar, and salt. Stir until the sugar dissolves completely.
- If desired, add whole peppercorns or bay leaves to the brine for extra flavor.
- Place the sliced onions in a clean glass jar. Pour the hot brine over the onions until they are fully submerged.
- Allow the jar to cool at room temperature before sealing it tightly and refrigerating. For best flavor, let them sit for at least 24 hours.
Notes
- Customize with your favorite spices for unique flavors.
- These pickled onions can last up to two weeks in an airtight container.
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Category: Side
- Method: Pickling
- Cuisine: American
Nutrition
- Serving Size: 1/4 cup (60g)
- Calories: 25
- Sugar: 5g
- Sodium: 430mg
- Fat: 0g
- Saturated Fat: 0g
- Unsaturated Fat: 0g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 0g
- Protein: 0g
- Cholesterol: 0mg