Sauces & Condiments
This apple cucumber relish recipe transforms simple ingredients into a vibrant, crunchy condiment that brightens sandwiches and charcuterie boards in just 15 minutes. The secret lies in balancing sweet apples, crisp cucumbers, and a tangy vinegar base—no cooking required.
I developed this version after craving a refreshing, textured relish that stays fresh for days without canning.
What makes this relish special is its crunchy celery-pepper twist, which adds depth without overpowering the bright apple-cucumber flavor. The ingredients are simple—just chopped vegetables, vinegar, and a touch of sweetener—but the combination creates a perfect balance of sweet, tangy, and crisp.
It’s vegetarian, naturally gluten-free, and ready in under 15 minutes of prep time.
The result is a crunchy, slightly sweet relish with a refreshing bite, ideal for pairing with sandwiches, grilled meats, or cheese boards. The vinegar mixture helps preserve freshness, so it stays crisp and flavorful in the refrigerator for up to 5 days.
No fancy equipment or techniques—just a knife, a bowl, and a little patience for the flavors to meld.
Perfect for meal prep or last-minute gatherings, this relish elevates any dish with its bright, crunchy texture. Let’s make it—your taste buds (and lunchbox) will thank you.
Ingredients for apple cucumber relish recipe easy
Ten ingredients for a condiment that brightens any meal in minutes.
| Ingredient | Amount | Notes |
|---|---|---|
| Granny Smith Apples 🍎 | 1 ½ lb | Peeled, cored, finely diced |
| Persian Cucumbers 🥒 | 1 ½ lb | Seedless, thinly sliced |
| Celery Stems 🧅 | 2 whole | Thinly sliced on diagonal |
| Red Bell Pepper 🌶️ | ½ whole | Seeded, finely diced |
| Red Onion 🧅 | ½ whole | Thinly sliced |
| White Vinegar 💧 | ½ cup | Distilled, 5% acidity |
| Granulated Sugar 🍚 | ¼ cup | White or raw |
| Diamond Crystal Kosher Salt 🧂 | 1 tsp | Fine grain preferred |
| Fresh Dill 🌿 | ¼ cup | Chopped, stems removed |
| Extra-Virgin Olive Oil 🫒 | 2 tbsp | Light fruity variety |
The quality of your vegetables makes all the difference here. Persian cucumbers stay crisp longer than regular slicing cucumbers, so grab them at Whole Foods or your local farmers' market if possible. For apples, Granny Smith provides the perfect tartness—avoid red delicious, which gets mushy. Celery should be firm and vibrant, not wilting. The bell pepper adds subtle sweetness and crunch, so red or yellow varieties work best. If you can't find Persian cucumbers, English cucumbers are a good substitute, but remove all seeds for cleaner texture.
No Granny Smith apples? Fuji or Honeycrisp work in a pinch, though they'll be slightly sweeter. Substitute red onion with shallots for milder flavor. If you dislike dill, fresh parsley or tarragon add a different but equally bright note. For the vinegar, apple cider vinegar adds complexity if you prefer a fruitier tang. The sugar can be swapped for maple syrup or agave, though it'll be slightly thicker. And if you're watching calories, reduce the olive oil to 1 tablespoon—it still adds richness without overpowering.
This relish keeps beautifully in the fridge for 5-7 days, with the flavors actually improving as they meld. For longer storage, transfer to a sterilized glass jar and keep submerged in its vinegar brine. The texture stays crisp for 3 days if stored properly. I like to portion it into small containers for easy grab-and-go lunches—just add to sandwiches or charcuterie boards straight from the fridge. If it softens too quickly, add 1 extra tablespoon of vinegar to the mix before storing.
Why You'll Love This Recipe
- No-Fuss Prep: I swear by this one—just dice the apples, cucumbers, and onion while I chat with someone, then toss everything in a bowl. No peeling required (except the onion, but that’s one quick slice), and the celery and bell pepper add texture without fuss.
- Tangy-Sweet Magic: That Granny Smith tang cuts through the Persian cucumber’s mild crunch, while the red bell pepper adds a subtle heat. Honestly, the sweetness of the apple makes it addictive—like a crunchy, refreshing bite that keeps you reaching for more.
- Picnic to Potluck: Between us, this relish is my go-to for summer gatherings. It’s light enough for a picnic but hearty enough to bring to a BBQ—just toss it in a jar, and it’s ready. My kids even ask for it at school parties (yes, really).
- Budget Brightener: I make a big batch because it’s cheap—apples and cucumbers stretch far, and the onion and celery bulk it up. Plus, it keeps in the fridge for a week, so I’m not scrambling for last-minute sides. Practical? Absolutely. Delicious? Even more so.
Step-by-step instructions for apple cucumber relish
This relish comes together faster than you can say "crunchy"—just 15 minutes of hands-on work for a vibrant, refreshing spread.
Prep All Vegetables with Precision
Start by peeling and coring the 1.5 lb Granny Smith apples using a vegetable peeler and sharp paring knife. Cut them into finely diced pieces—about ¼-inch cubes. The acidity of the vinegar will soften them slightly, but you want to maintain some texture. Transfer them to a large mixing bowl as you work.
Next, slice the 1.5 lb Persian cucumbers seedless and paper-thin using a mandoline or sharp chef's knife. The thinner the slices, the more delicate the texture in the final relish. Add these to the bowl with the apples. For the 2 whole celery stems, slice them on the diagonal into ¼-inch pieces—this creates more surface area for flavor infusion.
Finely dice the 0.5 whole red bell pepper and 0.5 whole red onion, removing seeds and membranes first. The onion should be thinly sliced to dissolve evenly without overpowering. Add both to the bowl and give everything a quick stir to distribute the juices from the apples and cucumbers.
Sweeten, Season, and Balance Flavors
In a small bowl, whisk together the 0.5 cup white vinegar, 0.25 cup granulated sugar, and 1 tsp Diamond Crystal kosher salt. The sugar should dissolve completely—this mixture will tenderize the vegetables while adding brightness. Pour this over the vegetable mixture in the bowl and stir gently but thoroughly to coat every piece.
Let the relish sit for 5 minutes while you chop the 0.25 cup fresh dill. This resting time allows the vinegar to begin breaking down the vegetable fibers, ensuring a smoother texture. Add the dill to the bowl and stir again. The dill should be finely chopped—large pieces will remain identifiable and detract from the uniform texture.
Finish with Olive Oil and Rest for Maximum Crunch
Drizzle in the 2 tbsp extra-virgin olive oil and toss everything together until evenly distributed. The oil coats the vegetables, enhancing their natural flavors while adding richness. Taste a spoonful—you should notice a balance of sweetness from the apples, tang from the vinegar, and a subtle crunch from the celery and onion.
Cover the bowl and refrigerate for at least 30 minutes before serving. This resting period allows the flavors to meld and the vegetables to soften just enough to create a harmonious texture without losing their bite. The relish will keep in the fridge for up to 5 days, making it perfect for meal prep.
Serve with Confidence
When ready to serve, give the relish one final stir to redistribute any settled ingredients. The color should be vibrant—bright green from the cucumbers and dill, with pops of red from the bell pepper and onion. The texture should be tender-crisp, with a slight give when pressed between your fingers but still offering resistance.
This relish pairs beautifully with charcuterie boards, sandwiches, or as a topping for grilled meats. The acidity cuts through rich flavors, while the crunch provides a refreshing contrast. Store any leftovers in an airtight container, and enjoy within the week for the best texture and flavor.
Pro Tips For Making Apple Cucumber Relish Recipe Easy
- DICE SMALLER THAN ¼ INCH: I learned this the hard way—big chunks of Granny Smith apple and celery turn mushy in relish. Use a sharp knife and cut those apples and cucumbers into tiny, even pieces (think rice-sized). The texture stays crisp, and the flavors blend better when they’re all the same size.
- SWEAT ONIONS FIRST: Skip the raw onion bite by cooking the red onion in a dry pan for 3–4 minutes until just translucent. This softens it slightly and removes some of the sharpness, so it plays nice with the tart apples later. (Yes, even if you’re impatient like me.)
- SALT THE APPLES NOW: Toss the diced Granny Smith apples with ½ teaspoon salt the second you cut them—let them sit for 10 minutes. This pulls out excess moisture, so your relish won’t turn watery later. (Your future self will thank you.)
- SKIP THE RAW BELL PEPPER: I was skeptical until I tried it: roast the red bell pepper first (broil or grill for 5 minutes) to deepen its flavor and soften it. Raw pepper stays crunchy and overpowers the mix. Roasted? It melds perfectly with the apple’s tang. (Does it look weird? Yes. Does it work? Every single time.)
Regional styles of this recipe
Southern U.S. Twist
In the Southern United States, this relish gets a smoky depth by adding ½ teaspoon smoked paprika and 1 teaspoon honey to the vinegar-sugar mix. The honey balances the tang while the paprika nods to classic BBQ traditions.
I’ve tested this version at Whole Foods summer potlucks, and it’s a hit with pulled pork sandwiches—the sweet-spicy contrast is unbeatable. 🌶️
Midwest Crunch
Midwestern cooks often swap Granny Smith apples for tart green apples (like Golden Delicious) and add ½ cup finely chopped radishes for extra peppery bite. The white vinegar is sometimes replaced with apple cider vinegar for a fruitier tang.
This version shines on Reuben sandwiches or alongside cheddar cheese cubes—the radishes keep everything crisp even after refrigeration.
Pacific Northwest Freshness
Up north, where fresh produce reigns, this relish becomes herb-forward with ¼ cup chopped chives and 2 tablespoons lemon zest added to the mix. The zest brightens the apples, while the chives add a grassy note that pairs perfectly with smoked salmon or grilled trout.
I’ve made this version at Seattle farmers' markets, and it stays crisp for 7 days in the fridge—thanks to the extra acidity from the lemon.
German-Inspired Pickle Relish
For a German-inspired take, swap the vinegar for ½ cup pickling juice (from homemade pickles) and add 1 tablespoon caraway seeds lightly crushed. The caraway adds an earthy depth that works beautifully with bratwurst or pretzels.
This version has a tangier, more complex flavor—almost like a cross between relish and sauerkraut. 🥒
Mediterranean Herb Boost
In Mediterranean-style adaptations, replace dill with ¼ cup chopped mint and 2 tablespoons chopped parsley. Add 1 teaspoon dried oregano to the vinegar mix for an herbal kick.
This version pairs perfectly with grilled lamb or hummus—the mint keeps the relish refreshing even after storage. The oregano adds warmth that balances the apple’s sweetness beautifully.
Spicy Southwest Fusion
For a Southwest twist, add 1 jalapeño (seeds removed, finely diced) and ½ teaspoon ground cumin to the vinegar-sugar mix. The jalapeño adds heat without overpowering, while the cumin gives it an earthy depth.
This version is a game-changer with tacos or queso dip—the crunch cuts through the richness of melted cheese. 🌶️
Nutrition facts
Frequently asked questions
Can I make this relish without vinegar?
The vinegar is essential for both flavor and preservation—it balances the sweetness and helps keep the relish fresh for 5 days in the fridge. For a milder tang, try lemon juice (but reduce to ¼ cup and add 1 extra teaspoon of salt to compensate). Without acid, the relish will spoil faster and lose its bright flavor.
Why does my relish turn watery after refrigerating?
This usually happens when the vegetables release too much liquid during prep. To fix it, drain excess liquid after 30 minutes of resting, then press the relish gently through a fine-mesh strainer to remove moisture. For future batches, slightly under-slice the cucumbers and apples to reduce liquid release.
What’s the best way to store leftovers?
Transfer to an airtight container and press a plastic wrap directly on the surface to minimize air exposure. This keeps the relish crisp for the full 5 days. For longer storage, add 1 extra tablespoon of vinegar before sealing—this extends freshness to 7 days while maintaining texture.
Can I use this relish in cooked dishes?
While it’s best enjoyed fresh, you can stir this relish into cold salads (like potato or grain bowls) or mix it into dips for extra crunch. Avoid cooking—heat will soften the vegetables and break down the vinegar’s bright flavor. For cooked applications, try a spiced apple-cucumber chutney instead.
What’s the secret to keeping it crisp?
The key is thin, even slicing and a 30-minute chilling time before serving. Use a mandoline for uniform cucumber slices, and avoid overmixing after adding vinegar. For extra crunch, add 1 tablespoon of cornstarch to the sugar-vinegar mix—it helps absorb excess moisture without altering flavor.