A bright, tangy, old-fashioned relish for hot dogs, burgers, tuna salad, potato salad, and every summer cookout in between.

If your cucumber vines are producing faster than you can eat them, sweet pickle relish is one of the most practical—and delicious—ways to preserve the harvest. This homemade version turns finely chopped cucumbers, onions, and bell peppers into a sweet-tart condiment with classic mustard seed, celery seed, and turmeric flavor. It is simple enough for beginners, but the canning instructions should follow tested preserving guidance for vinegar strength, headspace, and altitude-adjusted boiling-water processing.

Why Make Sweet Relish at Home?

Homemade sweet relish is a great answer to a big garden harvest because it uses several cups of chopped cucumbers at once and keeps the flavor of summer on your shelf. Pickling cucumbers are ideal because they have thinner skins and a firmer texture, but slicing cucumbers can work too—especially if you peel thick skins and scrape out watery centers before chopping.

Homemade Sweet Relish Recipe

Prep time: 30 minutes
Resting time: 2 hours
Cook time: 15 minutes
Yield: About 3 pint jars

Ingredients

• 4 cups cucumbers, finely diced or pulsed in a food processor; peel and seed larger slicing cucumbers
• 2 cups sweet onions, finely chopped
• 1 cup red bell pepper, finely chopped
• 1 cup green bell pepper, finely chopped
• ¼ cup pickling or kosher salt; do not use iodized table salt
• 2 cups apple cider vinegar, 5% acidity
• 3 cups white granulated sugar
• 1 tablespoon mustard seeds
• 1 tablespoon celery seeds
• ½ teaspoon ground turmeric

Step-by-Step Instructions

1. Chop and Salt the Vegetables

Combine the chopped cucumbers, onions, and bell peppers in a large bowl. Sprinkle the salt evenly over the vegetables, stir well, and add enough cold water to cover. Let the mixture sit at room temperature for 2 hours. This resting step draws out excess moisture so the finished relish stays bright and spoonable instead of watery.

2. Rinse and Drain Thoroughly

Pour the vegetables into a fine-mesh colander and rinse thoroughly under cold running water to remove excess salt. Press the mixture firmly with clean hands or a clean kitchen towel to squeeze out as much moisture as possible.

3. Boil the Sweet Vinegar Brine

In a large stainless steel or other nonreactive pot, combine the apple cider vinegar, sugar, mustard seeds, celery seeds, and turmeric. Bring the brine to a boil over medium-high heat, stirring until the sugar dissolves completely.

4. Simmer the Relish

Stir the drained vegetables into the boiling brine. Bring the mixture back to a boil, then reduce the heat to low and simmer for 10 minutes, stirring occasionally.

Storage and Canning Options

Refrigerator Method

Ladle the hot relish into clean glass jars, leaving about ¼-inch headspace. Let the jars cool to room temperature, tighten the lids, and refrigerate. For the best flavor, let the relish rest for 3 days before serving. Use refrigerated relish within 3 months.

Water-Bath Canning Method

Pack hot relish into hot pint jars, leaving ½-inch headspace. Remove air bubbles, make sure liquid covers the vegetables, wipe jar rims clean, and apply lids and rings fingertip-tight. Process in a boiling-water canner using a tested relish schedule for your altitude. Let jars cool undisturbed for 12 to 24 hours, check seals, and store sealed jars in a cool, dark pantry for up to 1 year.

Tips for Garden Cucumbers

• Trim the blossom end: Slice off about ¼ inch from the blossom end of each cucumber. That end can contain enzymes that soften pickles and relish.
• Use short food processor pulses: Pulse just until the vegetables are finely chopped. Over-processing turns them into mush and releases too much liquid.
• Peel large cucumbers: Thick-skinned slicing cucumbers can make relish tough, so peel them and scrape out watery seeds before chopping.
• Keep canning acidity consistent: Use vinegar labeled 5% acidity and avoid changing vinegar amounts in a recipe you plan to can.

Serving Ideas

Spoon this sweet relish over hot dogs, brats, burgers, and grilled sausages. Stir it into tuna salad, chicken salad, egg salad, or potato salad for a sweet-tangy crunch. It also makes a cheerful homemade gift when tucked into a basket with barbecue sauce, mustard, and a few other cookout favorites.