Directions
1️⃣ In a saucepan over medium heat, combine apple cider vinegar, sugar, salt, mustard seeds, and celery seeds. Stir until the sugar dissolves.
2️⃣ Add the chopped bell peppers, hot peppers, and red onion. Bring to a gentle simmer and cook for 5-7 minutes, stirring occasionally, until the veggies soften slightly but remain crisp.
3️⃣ Remove from heat and let the mixture cool for a few minutes.
4️⃣ Transfer the relish into a clean jar, ensuring the liquid covers the vegetables.
5️⃣ Let it cool to room temperature, then seal and refrigerate for at least 24 hours to develop flavors.
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