Great relish — like any great preserve — is about balance. Every ingredient here plays a specific role, and understanding what each one does makes you a better cook and a better preserver.

Sweet Bell Peppers (4 cups, finely chopped — red, yellow, and green)

The star of the show. Using a mix of red, yellow, and green bell peppers isn’t just for visual appeal — though the jewel-toned result is genuinely beautiful — it also creates a more complex flavor. Red and yellow bell peppers are sweeter and more fruity, having fully ripened on the vine. Green bell peppers are grassier and slightly more bitter, adding a vegetal counterpoint that keeps the relish from tasting one-dimensional. The combination produces a relish with more depth and interest than any single color would provide.

Finely chop the peppers into small, even pieces — roughly ¼ inch or smaller. Smaller pieces mean more surface area in contact with the brine, faster and more even flavor absorption, and a better texture on a hot dog or burger where you want the relish to distribute evenly rather than slide off in chunks.

Onion (1 medium, finely chopped)

Onion adds savory depth and a gentle sharpness that balances the sweetness of the peppers and the sugar. Raw onion is pungent and assertive; cooked onion in vinegar brine mellows into something sweet, soft, and savory that weaves through the relish rather than dominating it. Don’t skip it — the relish needs its savory backbone.

White Vinegar (1 cup)

The acidic preserving agent and the source of the tangy brightness that makes this relish pop. White vinegar is used here for its clean, neutral flavor that doesn’t compete with the sweetness of the peppers or the warmth of the spices. It keeps the colors vivid and the flavor clear. Apple cider vinegar can be substituted for a slightly fruitier, more complex result, though it will add an amber tint to the brine.

Granulated Sugar (¾ cup)

Amish relish is unambiguously sweet — that’s part of its identity. Three-quarters of a cup might sound like a lot, but across 24 servings, each portion contains just a small amount. The sweetness is what makes this relish so compelling as a condiment: it balances the acidity of the vinegar, softens the sharpness of the onion, and makes the whole jar inviting rather than challenging. You can reduce the sugar slightly if you prefer a tangier relish, but go gradually — the sweet-tangy ratio is what defines this style.

Pickling Salt (1 tbsp)

Salt is essential in two ways here. First, it’s used in the pre-salting step before cooking — drawing excess moisture out of the peppers and onion so the relish develops a better texture and doesn’t water down the brine. Second, it seasons the relish. Use pickling salt (also called canning salt) or kosher salt for clean, pure flavor. Iodized table salt can make the brine cloudy and leave a slightly metallic taste — avoid it.

Mustard Seeds (1 tsp)

A quintessential pickling and relish spice. Whole mustard seeds add a mild, earthy nuttiness and a satisfying pop of texture in the finished relish. They look beautiful in the jar and slowly release their flavor into the brine over time. If you bite into a mustard seed in a spoonful of relish, you get a little burst of warm, earthy flavor — one of the small pleasures of old-fashioned relish.

Celery Seeds (½ tsp)

Celery seeds don’t taste strongly of celery — they taste more herbal, slightly bitter, and aromatic. They’re a traditional relish spice that adds a complexity you’d miss if it weren’t there. Along with mustard seeds, they’re part of what makes this taste distinctly old-fashioned and homemade rather than like something out of a bottle.

Turmeric (½ tsp)

Turmeric’s role here is primarily visual. It gives the brine and the finished relish a warm golden-yellow glow that’s characteristic of traditional American relish — think of the yellow tinge in classic hot dog relish and you’ll recognize it immediately. Its flavor contribution is subtle: a faint earthiness and a mild warmth that supports the other spices without announcing itself. As a bonus, turmeric contains curcumin, which has been widely studied for its anti-inflammatory properties, though at these quantities it’s more seasoning than supplement.

Black Pepper (¼ tsp)

A quiet background note that adds just enough warmth to keep the relish from tasting flat. Black pepper’s aromatic spice rounds out the profile without competing with the mustard seeds or celery seeds.

Garlic (2 cloves, minced — optional)

The garlic is listed as optional, and it genuinely is — traditional Amish Sweet Pepper Relish often doesn’t include it. But if you enjoy garlic, adding two cloves minced creates a savory depth that makes the relish more versatile and complex. It pairs particularly well on burgers and sandwiches where you want a more robust flavor. Leave it out for a cleaner, more traditional profile that’s a bit sweeter and more straightforwardly bright.