- 1 cup apple cider vinegar
- 1 cup unseasoned rice vinegar
- 2 red Thai chiles, split lengthwise
- 1 teaspoon coriander seeds
- 1 medium daikon (Japanese white radish), peeled, very thinly sliced
- 1 medium watermelon radish, peeled, very thinly sliced
Bring cider vinegar, rice vinegar, sugar, salt, lime juice, chiles, coriander seeds, and ¼ cup water to a boil in a medium saucepan over medium-high heat, stirring to dissolve sugar. Let cool 10 minutes.