Zucchini Relish Recipe: A Small-Batch Cooked Relish

This cooked zucchini relish is bright, tangy, and easy to make in a small batch. It uses simple vegetables, a quick salt rest, and a short simmer for a tender, spoonable finish.

The result is a sweet-savory zucchini relish with gentle heat and a clean pickle-style bite. It is ready to spoon over burgers, fold into salads, or keep chilled for weeknight meals.

Zucchini Relish Ingredients and Yield

Makes about 3 cups, enough for 2 pint jars or several small servings.

• 4 cups finely chopped zucchini, lightly packed, from about 2 medium zucchini
• 1 cup finely chopped onion
• 1 cup finely chopped green bell pepper
• 2 tablespoons kosher salt
• 1 cup apple cider vinegar
• 1 cup granulated sugar
• 1 teaspoon yellow mustard seeds
• 1/2 teaspoon celery seed
• 1/4 teaspoon ground turmeric
• 1/4 teaspoon red pepper flakes, optional

How to Make Zucchini Relish

1. Combine the zucchini, onion, bell pepper, and salt in a large bowl. Toss well.
2. Let stand for 1 hour at room temperature. The vegetables will release moisture and soften slightly.
3. Transfer the mixture to a colander. Rinse briefly under cool water, then drain very well.
4. Gather the vegetables in a clean kitchen towel and squeeze firmly to remove excess liquid. This helps the relish cook down without turning watery.
5. In a medium saucepan, combine the vinegar, sugar, mustard seeds, celery seed, turmeric, and red pepper flakes if using.
6. Bring to a simmer over medium heat, stirring until the sugar dissolves.
7. Add the drained vegetables. Return to a gentle simmer and cook for 18 to 20 minutes, stirring often.
8. The relish is done when the vegetables look glossy and softened, most liquid has reduced, and the mixture still has some bite. It should not be dry or jam-like.
9. Cool for 15 minutes, then spoon into clean jars or containers. Let it cool completely before refrigerating.

Texture, Flavor, and Uses

This zucchini relish should be tender but not mushy. You want small, distinct pieces suspended in a lightly thickened, shiny brine. If the pan looks soupy at the end, simmer 2 to 3 minutes longer. If it becomes too thick, add 1 to 2 tablespoons water or vinegar.

For a sweeter relish, add 2 more tablespoons sugar. For a sharper finish, add 1 to 2 tablespoons vinegar at the end. For more heat, increase the red pepper flakes to 1/2 teaspoon or add a minced jalapeño with the vegetables.

Use this zucchini relish on hot dogs, burgers, grilled tofu, veggie sausages, and sandwiches. It also works well stirred into potato salad, folded into tuna or chickpea salad, or served beside roasted potatoes and bean bowls. A spoonful adds instant brightness to simple plant-forward meals.

Refrigerator Storage

Store the cooled relish in airtight jars or containers in the refrigerator. It keeps well for up to 2 weeks, and the flavor usually improves after the first day.

Always use a clean spoon to serve it. If the relish smells off, shows mold, or develops an unusual texture, discard it. For best texture, stir before serving if any liquid settles at the top.