Tangy Pepper Onion Relish – A Bold, Bright Condiment for Any Dish

Tangy Pepper Onion Relish 🌶️🧅 A Bright Kick of Sweet and Savory Flavor

This Tangy Pepper Onion Relish is your new go-to condiment for grilling season and beyond. Packed with vibrant bell peppers, sweet onions, and a balanced blend of vinegar, sugar, and spices—it’s a fresh, tangy, slightly sweet relish that instantly transforms any savory dish. Whether spooned onto burgers, paired with grilled meats, or served alongside a cheese board, it brings bold flavor and beautiful color to the table.


Why I Love This Recipe

Relishes are one of the easiest ways to pack a punch of flavor into everyday meals, and this one is as eye-catching as it is delicious. The mix of sweet bell peppers and tangy vinegar, layered with gentle heat and spice, gives this relish real personality. It’s perfect for make-ahead meal prep, summer cookouts, or even as a unique edible gift.


Ingredients

  • 4 cups mixed bell peppers, thinly sliced (red, yellow, and orange for color)
  • 2 large onions, thinly sliced into half-moons
  • 1 cup white vinegar
  • 1 cup apple cider vinegar
  • 1 cup granulated sugar
  • 1 tablespoon whole mustard seeds
  • 1 teaspoon celery seeds
  • 1 teaspoon ground turmeric
  • 1 teaspoon salt
  • 1/2 teaspoon freshly ground black pepper
  • 1/2 teaspoon red pepper flakes (optional for heat)

How to Make Tangy Pepper Onion Relish

  1. Combine Peppers & Onions: In a large bowl, toss the bell peppers and onions until evenly mixed.
  2. Simmer the Brine: In a medium saucepan, mix both vinegars, sugar, mustard seeds, celery seeds, turmeric, salt, black pepper, and optional red pepper flakes. Bring to a gentle boil over medium heat, stirring to dissolve the sugar.
  3. Pour & Marinate: Pour the hot brine over the pepper-onion mixture. Stir to coat everything well.
  4. Cool & Jar: Let the mixture cool to room temperature. Then transfer to clean jars or airtight containers.
  5. Refrigerate & Wait: Refrigerate for at least 24 hours to let the flavors meld before serving.

Tips for Success

  • Slice thinly: Thin slices absorb the brine better and give that perfect soft-yet-crisp relish texture.
  • Let it rest: Don’t skip the 24-hour marination—it’s what deepens the flavor beautifully.
  • Customize the spice: Add more red pepper flakes or even a diced jalapeño if you like it hot.
  • Sterilize if canning: If you want to preserve it for longer, use proper canning techniques.

Serving Suggestions & Pairings

This relish works wonders in so many dishes. Try it with:


Storage Tips

  • Refrigerate: Store in airtight jars in the fridge for up to 3 weeks.
  • Freeze: You can freeze it in freezer-safe containers for up to 2 months.
  • For longer storage: Consider water bath canning for shelf-stable jars.

More Recipes You’ll Love

If you loved this relish, here are more savory sides and snacks to check out:


Final Thoughts

This Tangy Pepper Onion Relish is one of those secret-weapon condiments that instantly brightens any dish. It’s vibrant, versatile, and wildly flavorful—just a spoonful turns everyday meals into something special.

✨ If you make this relish, I’d love to see how you use it! Tag @chefmaniacrecipes on Instagram or leave a comment with your favorite pairing.