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Sweet Pickled Onions

by Victoria

Crisp, Tangy & Slightly Sweet – The Ultimate Flavor Booster 🧅✨

Hey Kitchies! 💕
If there’s one little secret weapon I always have tucked away in the fridge — it’s Sweet Pickled Onions. They’re that zingy, tangy, slightly sweet bite that takes any dish from “pretty good” to absolutely crave-worthy.

I’m talking tacos, burgers, salads, sandwiches — even a plain avocado toast feels fancy with a few of these beauties on top. Plus, they’re ridiculously easy to make in just 10 minutes — no canning, no fuss, just a jar full of flavor magic.

Once you try homemade pickled onions, you’ll wonder how your fridge ever lived without them.


Why You’ll Love These Sweet Pickled Onions

✅ Quick & Easy — ready in 10 minutes
✅ Sweet + tangy balance
✅ No special equipment needed
✅ Keeps for up to 2 weeks in the fridge
✅ Naturally vegan + gluten-free


The Story Behind These Pickled Onions 💕

It all started when I made tacos for the first time with pickled onions… and my husband couldn’t stop raving about them.Now, every taco night, sandwich platter, or salad in our house gets topped with these little pink gems.

Even my little one loves sneaking them straight from the jar — which, honestly, makes me feel like I’m winning the veggie game.


Why These Sweet Pickled Onions are the BEST

These onions are:

  • Perfectly balanced — not too vinegary, not too sweet
  • Crisp and bright
  • Ready in minutes
  • The easiest way to elevate your meals

Ingredients You’ll Need 🛒

  • 1 large red onion (thinly sliced)
  • ½ cup apple cider vinegar (or white vinegar)
  • ½ cup water
  • 1 tbsp sugar (or maple syrup for a natural sweetener)
  • 1 tsp salt
  • Optional: ½ tsp peppercorns, garlic clove, or a sprig of thyme

How to Make Sweet Pickled Onions


1. Slice the Onions

Thinly slice the red onion — the thinner, the better! A mandoline makes this super easy, but a sharp knife works just fine.


2. Make the Brine

In a small saucepan, heat vinegar, water, sugar, and salt until dissolved (about 2 minutes). No need to boil — just warm enough to dissolve the sugar.


3. Pack the Jar

Add the sliced onions to a clean jar, along with any extras like garlic or peppercorns. Pour the warm vinegar mixture over the onions until fully submerged.


4. Let Them Pickle

Let the jar sit at room temperature for 30 minutes — they’ll turn that gorgeous pink color almost instantly.


5. Store & Enjoy

Seal the jar and store in the fridge for up to 2 weeks — if they last that long!


Tips for the BEST Sweet Pickled Onions

  • Use red onions for the prettiest pink hue
  • Let them sit overnight for the best flavor
  • Add a pinch of chili flakes for a little heat
  • Use maple syrup for a naturally sweet, refined sugar-free version

Substitutions & Variations

IngredientSwap ForWhy It Works
Apple Cider VinegarWhite VinegarTangier flavor
SugarMaple SyrupNaturally sweet
Red OnionShallotsMore delicate flavor
PeppercornsChili FlakesSpicy kick

Make It Healthier 🌿

✅ Use maple syrup instead of sugar
✅ Try Himalayan pink salt for added minerals
✅ Use raw apple cider vinegar for gut-friendly probiotics


What to Serve Sweet Pickled Onions With

  • Tacos 🌮
  • Avocado Toast
  • Salads
  • Sandwiches + Burgers
  • Grain Bowls
  • BBQ Pulled Chicken

How to Store Them

Pop your jar in the fridge and they’ll stay crisp + flavorful for up to 2 weeks.


FAQs

Do I need to sterilize the jar?
Nope! Just make sure it’s clean and dry.


Can I make them spicier?
Absolutely! Add a pinch of chili flakes or sliced jalapeños.


What’s the best vinegar to use?
Apple cider vinegar gives the best sweet-tangy balance, but white vinegar works if you like a stronger tang.


Can I use white onions instead of red?
Yes, but they won’t have that pretty pink color!


And there you have it!

These Sweet Pickled Onions are the easiest little kitchen trick you’ll ever learn — and once you start adding them to everything, you’ll never stop.

Let me know if your family becomes just as obsessed with these as mine has!


Want More Easy Kitchen Staples?

  • Homemade Pesto
  • Quick Pickled Jalapeños
  • Creamy Avocado Lime Dressing

Categories:

Condiments | Sides | Meal Prep

Tags:

#PickledOnions #MealPrepHacks #HealthyCondiments

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Sweet Pickled Onions


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  • Author: Victoria

Description

If there’s one little secret weapon I always have tucked away in the fridge — it’s Sweet Pickled Onions. They’re that zingy, tangy, slightly sweet bite that takes any dish from “pretty good” to absolutely crave-worthy.


Ingredients

Scale
  • 1 large red onion (thinly sliced)
  • ½ cup apple cider vinegar (or white vinegar)
  • ½ cup water
  • 1 tbsp sugar (or maple syrup for a natural sweetener)
  • 1 tsp salt
  • Optional: ½ tsp peppercorns, garlic clove, or a sprig of thyme

Instructions

1. Slice the Onions

Thinly slice the red onion — the thinner, the better! A mandoline makes this super easy, but a sharp knife works just fine.


2. Make the Brine

In a small saucepan, heat vinegar, water, sugar, and salt until dissolved (about 2 minutes). No need to boil — just warm enough to dissolve the sugar.


3. Pack the Jar

Add the sliced onions to a clean jar, along with any extras like garlic or peppercorns. Pour the warm vinegar mixture over the onions until fully submerged.


4. Let Them Pickle

Let the jar sit at room temperature for 30 minutes — they’ll turn that gorgeous pink color almost instantly.


5. Store & Enjoy

Seal the jar and store in the fridge for up to 2 weeks — if they last that long!

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