Homemade Pepper and Onion Relish Recipe: Easy Step-by-Step Guide

Here's how to make delicious homemade pepper and onion relish in under 30 minutes. This simple recipe delivers perfect sweet-tangy flavor for burgers, tacos, and more.

Ingredients

• 2 cups diced red bell peppers
• 1 cup finely chopped yellow onion
• 1 cup diced green bell peppers
• 1 cup apple cider vinegar
• 1/2 cup brown sugar
• 1 tsp salt
• 1 tsp mustard seeds
• Optional: 1/2 tsp red pepper flakes for heat

Step-by-Step Instructions

1. Combine all ingredients in a large saucepan over medium-high heat.
2. Bring to a boil, then reduce heat to low and simmer for 20-25 minutes, stirring occasionally, until thickened.
3. Remove from heat and let cool slightly.
4. Transfer to sterilized jars, leaving 1/2 inch headspace for expansion.
5. Seal jars tightly and store in refrigerator for up to 6 months, or process for canning to store up to 18 months unopened.

Storage Method	Shelf Life	Notes
Unopened Jar (Pantry)	Up to 1 year	Store in cool, dry place away from sunlight
Opened Jar (Refrigerator)	6–9 months	Keep tightly sealed and use clean utensils
Freezer Storage (Homemade)	Up to 12 months	Use freezer-safe containers; thaw slowly

Top 10 Unexpected Ways to Use Pepper & Onion Relish

1. Upgrade Your Sandwiches
   Add a dollop to turkey, grilled cheese, or egg salad sandwiches. The acidity cuts through rich ingredients and boosts flavor.
2. Spice Up Tacos & Burritos
   Mix into taco meat or add on top of fish tacos for a sweet and tangy twist.
3. Mix Into Baked Beans
   Stir a few tablespoons into canned baked beans for an instant flavor upgrade.
4. Makes Zesty Deviled Eggs
   Swap out mustard or mayo with relish for a fresh, colorful twist.
5. Dip Base for Chips & Veggies
   Blend with sour cream or Greek yogurt for a quick dip that's both tangy and crunchy.
6. Grilled Cheese Boost
   Spread a thin layer between slices of cheese for a gourmet grilled cheese experience.
7. Burger Glaze Alternative
   Use as a glaze during the last few minutes of grilling for a caramelized finish.
8. Savory Oatmeal Hack
   A spoonful added to morning oats adds unexpected depth and balance.
9. Pizza Topping Substitute
   Replace tomato sauce with relish for a unique pizza base that pairs well with goat cheese and prosciutto.
10. Cocktail Rim Magic
    Combine with chili powder and lime zest for a spicy rim on Bloody Marys or micheladas.

Product Name	Flavor Profile	Best For	Occasion
Heinz Chili Sauce	Sweet, mild heat	Classic burgers and hot dogs	Weekend cookouts
Hatch Green Chile Relish	Smoky, medium heat	Tacos, scrambled eggs, nachos	Southwestern flair
Mrs. Bridges Red Onion Marmalade	Sweet, tangy, deep umami	Cheese boards, steak accompaniment	Fancy dinners
Trader Joe's Spicy Green Peppercorn Relish	Sharp, vinegary kick	Salads, wraps, marinades	Everyday meals

Frequently Asked Questions

How Long Does Homemade Relish Last?

Properly canned homemade relish can last up to 18 months unopened. Once opened, store in the fridge and consume within 6–9 months.

Can I Freeze Pepper and Onion Relish?

Yes! Transfer to freezer-safe containers and leave 1/2 inch headspace for expansion. Store for up to 12 months.

How Much Pepper and Onion Relish Should I Use in a Dish?

Start with 1-2 tablespoons per serving and adjust to taste. For sandwiches and burgers, a tablespoon is usually perfect. When incorporating into dishes like baked beans or deviled eggs, begin with 2-3 tablespoons and taste before adding more.

Should I Add Relish Before or After Cooking?

For dishes like burgers or grilled meats, add relish during the last few minutes of cooking for a caramelized finish. For cold applications like sandwiches or dips, add it after cooking. If using in hot dishes like baked beans, stir it in during the last 5-10 minutes to preserve fresh flavor.

Conclusion

Homemade pepper and onion relish transforms everyday meals with minimal effort. With this detailed recipe, you'll master storage, creative uses, and perfect flavor balance every time. Start experimenting today!