Ingredients
Method
- Prepare the red onions by peeling and slicing them into thin half-moons.
- Pack the sliced onions tightly into a clean glass jar and add garlic, peppercorns, or red pepper flakes if using.
- In a small saucepan, combine apple cider vinegar, water, maple syrup, and sea salt. Heat over medium until dissolved.
- Pour the hot liquid over the onions in the jar, ensuring they are fully submerged.
- Let the jar sit uncovered at room temperature for about 30 minutes until the onions turn pink.
- Seal the jar and refrigerate. For best flavor, wait at least 24 hours before serving.
Notes
Store in an airtight glass container in the refrigerator for up to three weeks. Serve cold or at room temperature.
