Side Dishes > Pickled & Fermented Sides > Pickled Vegetables > Pickled Onions Recipe

Sweet and Tangy Pickled Onions with a Hint of Spice

This pickled onion recipe balances sweetness, tanginess, and a touch of spice for a flavorful side dish or condiment. It's incredibly versatile and adds a vibrant kick to your favorite dishes. The combination of apple cider vinegar, brown sugar, and a pinch of chili flakes creates a unique and irresistible flavor.

Prep Time
15 minutes
Cook Time
5 minutes
Servings
About 2 cups
Ingredients
  • 2 medium Yellow Onions
  • 1 cup Apple Cider Vinegar
  • 1/2 cup Water
  • 3 tablespoons Brown Sugar
  • 1 tablespoon Kosher Salt
  • 1 teaspoon Mustard Seeds
  • 1/4 teaspoon Chili Flakes
  • 1 clove, crushed Garlic Clove

Slicing the Onions

Slice the yellow onions thinly. A mandoline is useful for even slicing. If you don't have one, use a sharp knife and aim for consistent, thin slices. Thin slices allow for better pickling.

Preparing the Brine

In a medium saucepan, combine the apple cider vinegar, water, brown sugar, kosher salt, mustard seeds, chili flakes, and crushed garlic clove. Bring to a gentle boil over medium heat, stirring to dissolve the sugar and salt. Remove from heat once dissolved.

Combining and Cooling

Place the sliced onions into a clean glass jar or a heat-resistant container. Pour the hot vinegar mixture over the onions, ensuring they are fully submerged. Press down gently to release any trapped air pockets. Let the mixture cool to room temperature.

Refrigerating

Once cooled, seal the jar or container and refrigerate for at least 4 hours, or preferably overnight. The longer they sit, the more the flavors will meld together, creating a richer taste. This pickling time also affects the texture of the onion, making it more tender.

Serving Suggestions

These sweet and tangy pickled onions are delicious on burgers, hot dogs, sandwiches, pulled pork, or as part of a cheese board. They add a bright and zesty element to any dish. Store any remaining pickled onions in the refrigerator in an airtight container for up to 2 weeks.

Nutrition Facts Estimated per 100g of product

Please note that this is an estimate and can vary based on specific ingredients used.

Calories: Approximately 65-75
Carbohydrates: 12-14g
Sugar: 10-12g
Protein: Less than 1g
Fat: Less than 1g
Sodium: Varies depending on amount of salt used.

Other Considerations for Nutrition

This recipe uses brown sugar, which contributes to the carbohydrate and sugar content. Adjusting the amount of brown sugar will change these values. Consider the sodium content, especially if you are watching your salt intake.

← Spicy Red Cabbage Sauerkraut →

FAQ

  • Can I use other types of onions?

    While yellow onions are recommended, you can use white or red onions. Each type will impart a slightly different flavor to the final product. Red onions will add a more vibrant color.
  • Can I omit the chili flakes?

    Yes, you can omit the chili flakes if you prefer a less spicy flavor. The recipe will still be delicious without them.
  • How long will these pickled onions keep?

    Stored properly in an airtight container in the refrigerator, these pickled onions will keep for up to 2 weeks.
  • What is the best way to slice the onions?

    Thin, even slices are best for pickling. A mandoline is helpful, but a sharp knife works as well. Aim for slices that are about 1/8 inch thick.