- 1 medium red onion, halved and thinly sliced into half-moons
- 1/4 cup fresh lime juice
- 1/4 cup fresh orange juice
- 1 tsp salt
- 1 jalapeño, seeded and minced (optional)
- Place all of the ingredients in a medium bowl. Toss to coat. Cover and marinate in the refrigerator for at least 2 hours and use for up to 3 days.