Sauces & Condiments
This apple cucumber relish recipe transforms simple ingredients into a refreshing, crunchy bite that stays vibrant for weeks—no cooking required. The secret lies in the perfect balance of sharp apple, crisp cucumber, and tangy vinegar dressing, creating a texture that’s fresh and satisfying.
I developed this recipe during a summer picnic when I needed something bright to cut through rich meats and cheeses.
The beauty of this relish is its versatility—it works as a sandwich topping, charcuterie pairing, or side dish that adds a refreshing crunch. With just 10 minutes of prep, you’ll have a batch ready to enjoy immediately or store for up to two weeks in the fridge.
The ingredients are simple: diced apple, cucumber, red onion, celery, and fresh herbs, all tossed in a zesty vinegar-sugar dressing.
What makes this relish stand out is how it keeps its texture and flavor over time. The acidity from the vinegar preserves the crunch, while the sugar balances the sharpness of the apple and cucumber.
It’s the kind of condiment that elevates any meal without overpowering it—perfect for those who love bold flavors but hate complicated recipes.
Once you try this relish, you’ll find yourself reaching for it at every gathering. Its bright, tangy notes make it a crowd-pleaser, and the fact that it stays fresh for weeks means you’ll always have something delicious on hand. Let’s get started!
Ingredients for apple cucumber relish recipe easy
Nine simple ingredients create this vibrant relish that stays crisp for weeks—no cooking required.
| Ingredient | Amount | Notes |
|---|---|---|
| Granny Smith Apples 🍎 | 2 cups | Diced into 1/4-inch pieces |
| Persian Cucumbers 🥒 | 2 cups | Seedless, diced into 1/4-inch pieces |
| Red Onion 🧅 | ½ cup | Finely diced, about 1/8-inch |
| Celery Stalks 🧅 | 2 whole | Diced into 1/8-inch pieces |
| Fresh Dill 🌿 | ¼ cup | Chopped, stems removed |
| Fresh Parsley 🌿 | ¼ cup | Chopped, stems removed |
| White Vinegar 💧 | ½ cup | Distilled, not apple cider |
| Granulated Sugar 🍚 | ½ cup | White or raw cane |
| Kosher Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Extra-Virgin Olive Oil 🫒 | 2 tbsp | For finishing, fruity variety |
The apples and cucumbers are the stars here—Granny Smith for tartness, Persian cucumbers for crispness. Grab the firmest apples you can find at Whole Foods or your local market; they hold up best. For cucumbers, seedless Persian is ideal, but any firm cucumber works. Dice them uniformly for even texture. The celery adds a nice crunch, but if you're short on time, substitute with extra cucumber. Fresh herbs like dill and parsley brighten everything up—Trader Joe's sells pre-chopped blends if you're in a rush, but fresh is always better.
No Granny Smith apples? Fuji or Honeycrisp work too, but they soften faster. Short on vinegar? Lemon juice at half the amount gives a similar tang. The sugar balances the acidity, but if you prefer less sweetness, reduce to 1/4 cup. For a smoky twist, add 1/2 tsp smoked paprika to the dressing. The relish keeps its crunch best when the veggies are cut uniformly—use a mandoline for precision if you're feeling fancy. If you're making this ahead, prep the veggies first and store them separately until ready to toss with the dressing.
This relish stays fresh for 2 weeks in an airtight container in the fridge. The acidity from the vinegar preserves the crunch, but if it starts to soften, add a splash of fresh vinegar to revive it. For extra shelf life, store the dressing and veggies separately until ready to mix. The relish tastes even better the next day as the flavors meld. Portion into small jars for easy serving at picnics or parties—mason jars work perfectly. If you make a big batch, freeze half for later; thaw overnight in the fridge before serving.
Why You'll Love This Recipe
- Here’s what sold me: I already had all the ingredients. Apples and cucumbers stay fresh forever, onions and celery are cheap, and dill? A few stems go a long way. I make this when I’m low on fresh herbs or need a quick side. Plus, it’s one of those dishes that tastes better the next day—so no waste, just flavor.
- No Dice Needed: Honestly, I just toss everything in—apples, cucumbers, onion, celery—with a splash of vinegar and a pinch of salt. No fancy techniques, no peeling if you’re in a rush. The Granny Smiths stay crisp, the Persian cucumbers add that cool crunch, and the red onion? Just a quick soak in cold water to mellow the bite. Fifteen minutes tops, and zero stress.
- Unexpected Tangy Crunch: Between us, the combo of sharp Granny Smiths and that bright dill is ridiculously good. The celery adds this earthy backbone, while the red onion gives it a little kick. It’s not sweet like most relishes—it’s got this zesty, herby punch that makes it perfect for cutting through rich foods. (Yes, even on a Tuesday night.)
- Picnic Party Hero: I swear, this relish is my go-to for potlucks, BBQs, or just a lazy Sunday spread. Slap it on sandwiches, toss it with grilled chicken, or serve it straight up with crackers. It keeps well for days, so I make a big batch and hand it out like candy. Honestly, people always ask for the recipe—and I never get tired of making it.
Step-by-step instructions for apple cucumber relish
This refreshing relish comes together in minutes with no fancy techniques—just sharp knives and patience.
Prep the Vegetables with Precision
Start by dicing the 2 cups Granny Smith Apples into ¼-inch pieces—small enough to stay crunchy but large enough to feel substantial. I use a sharp chef's knife and cut the apples into quarters first, then slice them lengthwise and crosswise. The acidity from the vinegar later will help preserve their texture, but you want them firm now.
Next, peel and seed the 2 cups Persian Cucumbers if they have large seeds, then dice them into ¼-inch cubes. For the 0.5 cup Red Onion, make sure to dice it finely—⅛-inch pieces—so it blends smoothly without overpowering. Finally, cut the 2 whole Celery Stalks into ⅛-inch dice, removing any stringy bits. Keep all your chopped vegetables in separate bowls to stay organized.
Combine Vegetables and Season
In a large mixing bowl, combine all the chopped vegetables: apples, cucumbers, onion, and celery. Add the 0.25 cup Fresh Dill and 0.25 cup Fresh Parsley, both chopped finely. Give everything a gentle stir to distribute the herbs evenly. Here's the thing—don't press down or pack the vegetables too tightly. You want them to stay crisp, so leave some air between the pieces.
Now add the 0.5 cup Granulated Sugar and 1.5 tsp Kosher Salt, tossing gently to coat the vegetables. The sugar will start drawing out moisture, which is why we don't want to overmix. Let it sit for 10 minutes while you prepare the next step. This gives the sugar time to begin breaking down the vegetables slightly, ensuring a balanced sweet-tangy flavor.
Add Vinegar and Olive Oil for Balance
Pour in the 0.5 cup White Vinegar and the 2 tbsp Extra-Virgin Olive Oil, then stir everything together thoroughly. The vinegar will brighten the flavors and help preserve the relish, while the olive oil adds a silky finish. Taste a spoonful—you should notice a crisp, fresh flavor with a hint of sweetness. If it needs more tang, add 1-2 teaspoons of vinegar; if it needs more sweetness, add 1 teaspoon of sugar. Adjust gradually to avoid overpowering the delicate flavors.
Let the relish sit for 15 minutes at room temperature. This resting period allows the flavors to meld and the vegetables to soften just enough to release their juices. The mixture should look glossy and vibrant, with the herbs evenly distributed. If it seems too wet after resting, drain any excess liquid through a fine-mesh strainer before serving.
Chill and Serve for Maximum Freshness
Transfer the relish to an airtight container and refrigerate for at least 2 hours—overnight is even better. Chilling enhances the flavors and keeps the vegetables crisp. When ready to serve, give it a final taste and adjust seasoning if needed. The relish should be bright, tangy, and perfectly balanced with a satisfying crunch.
This relish stays fresh for up to 2 weeks in the fridge, making it ideal for meal prep. Serve it with charcuterie boards, sandwiches, or as a refreshing side dish. The key to its success is the balance of acidity, sweetness, and fresh herbs—trust the process, and you'll have a relish that's as easy as it is delicious.
Pro Tips For Making Apple Cucumber Relish Recipe Easy
- CHOP ONION SMALLER THAN YOU THINK: I learned this the hard way—big onion chunks make the relish taste uneven. Dice that red onion into 1/8-inch pieces or finer; it’ll melt into the mix smoothly instead of sitting as chewy bits. (Yes, it takes a minute longer, but your taste buds will notice.)
- SWEAT CELERY FIRST: Skip the raw celery bite—sauté those stalks in a dry pan for 2-3 minutes until just tender. The flavor softens and blends better with the apples, and it keeps the relish from tasting too sharp. (Pro move: Add a pinch of salt here—it draws out moisture and makes the celery sweeter.)
- ACIDIFY THE APPLES IMMEDIATELY: Toss your Granny Smiths with 1 tablespoon of lemon juice or vinegar right after dicing. This prevents browning and keeps the apples crisp instead of mushy. (I used to skip this and ended up with sad, limp apples—don’t be like me.)
- USE A MIXED DILL APPROACH: Fresh dill is non-negotiable, but here’s the trick: finely chop half and leave the other half in sprigs. The chopped dill blends into every bite, while the sprigs add a bright, herby finish. (Sounds weird, but it works—trust the process.)
Common mistakes when making your apple cucumber relish recipe easy
Overmixing the Relish
One of the biggest mistakes I see is overmixing the vegetables after adding the dressing. When you press down too hard or stir vigorously, you crush the apples and cucumbers, turning them mushy instead of keeping that perfect crunch.
Instead, use a spoon or rubber spatula to gently fold everything together—just enough to coat the veggies evenly. The goal is to preserve texture, not mash it all into submission. 🥗
Skipping the Resting Time
Rushing the 15-minute rest after mixing is another common error. This short break lets the flavors meld and the vegetables release just enough juice to create that glossy, cohesive texture.
If you skip it, your relish might taste flat or overly dry. Trust me, those 15 minutes make all the difference in the final result.
Using Soft or Overripe Apples
Soft or overripe apples will turn your relish into a sad, mushy mess. Always choose firm Granny Smith apples—they hold up best to the acidity and keep their shape.
If your apples are already slightly soft, toss them in ½ cup cold water for 10 minutes before dicing to firm them up. This trick works like a charm and keeps that satisfying bite. 🍎
Ignoring the Vinegar-to-Sugar Ratio
The balance between vinegar and sugar is critical—too much of either throws off the flavor. If you use apple cider vinegar instead of white vinegar, reduce the sugar to ¼ cup to avoid cloying sweetness.
And never skip the sugar entirely; it’s what makes the relish taste bright and balanced, not just sour. Taste as you go and adjust gradually!
Not Draining Excess Liquid
After resting, some relishes release more liquid than others. If yours looks watery, don’t just leave it—drain the excess through a fine-mesh strainer before serving. This keeps the texture perfect and prevents a soggy bite.
I like to press the veggies gently with a clean kitchen towel to soak up any extra moisture. A little effort here goes a long way! 💧
Storing Improperly
Storing relish in the wrong container or without proper airtight sealing is a fast track to spoilage. Always use a glass airtight container (like a mason jar) and press the lid down firmly to keep air out.
If you notice mold or an off smell after 2 weeks, toss it—no second chances here. The vinegar preserves it, but only if stored correctly. Keep it in the fridge, not on the counter!
Nutrition facts
Frequently asked questions
Can I make this relish without vinegar?
The vinegar is essential for both flavor and preservation—it creates that signature tang and helps keep the vegetables crisp for weeks. If you're avoiding vinegar, try substituting with lemon juice (use half the amount) or pickle juice (¼ cup), but the texture may soften faster. The relish will still taste bright, but won't last as long in the fridge.
How do I keep the cucumbers from getting watery?
Seedless Persian cucumbers work best, but if yours have large seeds, remove them first. For extra crunch, pat the diced cucumbers dry with a paper towel before adding them to the mix. Also, avoid overmixing after adding the dressing—gentle folding preserves texture. If your relish still looks watery after resting, drain excess liquid through a fine-mesh strainer before serving.
Can I add other fruits or vegetables?
Try adding ¼ cup diced bell pepper for sweetness or ¼ cup chopped radishes for extra bite. For fruit, peaches or pears work well (use ½ cup instead of apples), but keep the total fruit amount to 2 cups to maintain balance. Just adjust the sugar slightly if using sweeter fruits. The key is keeping the texture crisp—stick with firm, starchy veggies.
Why does my relish taste bland after a few days?
This usually happens when the acidity (vinegar) and sweetness (sugar) aren't properly balanced. Taste and adjust by adding 1 tsp more vinegar or ½ tsp more sugar as needed. If stored properly in an airtight container, the relish should maintain its flavor for 2 weeks. For extra brightness, add ½ tsp fresh lemon juice or a pinch of garlic powder before serving.
What are the best ways to serve this relish?
This versatile relish shines as a sandwich spread (especially with turkey or roast beef), a charcuterie board accompaniment, or a side for grilled meats and cheeses. It also pairs beautifully with fish tacos or open-faced sandwiches. For a sweet twist, serve with cheese boards featuring sharp cheddar or blue cheese. The bright flavors cut through rich dishes perfectly!