1. Prepare the Onions:
- Slice Onions: Peel the red onion and cut it into thin, even slices. The thinner the slices, the quicker they will pickle.
2. Make the Brine:
- Combine Ingredients: In a small saucepan, combine the apple cider vinegar, water, granulated sugar, and salt. Stir to dissolve the sugar and salt.
- Add Spices: Add the black peppercorns, mustard seeds, dried oregano, garlic (if using), and red pepper flakes (if using) to the saucepan.
- Heat Brine: Bring the mixture to a simmer over medium heat, stirring occasionally. Once the sugar and salt have dissolved, remove the brine from heat and let it cool slightly.
3. Pack the Jar:
- Layer Onions: Place the thinly sliced onions in a clean glass jar or container. You can use a pint-sized jar or any container that’s appropriate for the amount of onions.
- Add Brine: Pour the warm brine over the onions, making sure they are fully submerged. If the onions float, gently press them down with a spoon.
4. Cool and Store:
- Cool: Let the jar cool to room temperature. Once cooled, seal the jar with a lid.
- Refrigerate: Place the jar in the refrigerator. The pickled onions will be ready to eat in as little as 1 hour but will develop more flavor if allowed to sit for 24 hours.
Tips for Perfection
- Slicing: Using a mandoline slicer can help achieve uniform, thin slices for quicker and more even pickling.
- Flavors: Feel free to experiment with additional spices such as coriander seeds, bay leaves, or a small amount of fresh herbs to customize the flavor.
- Storage: Pickled red onions will keep in the refrigerator for up to 2-3 weeks. They may become more flavorful over time.
Conclusion
Easy Pickled Red Onions are a fantastic way to add a burst of flavor to your meals with minimal effort. The tangy brine and crisp texture make them a delicious and colorful addition to a variety of dishes. Whether you’re looking to elevate your sandwiches or add a punch of flavor to your salads, these pickled red onions are sure to become a staple in your kitchen.
Enjoy your homemade pickled red onions, and don’t hesitate to adjust the recipe to suit your taste preferences!