Sumac Potato Salad tastes bright and lemony, with creamy potatoes, crisp red onion, and a tart pop that keeps you going back for another forkful. It suits weeknight dinners, potlucks, and picnics, and you can get it on the table in about 35 minutes. I fell for this combo on a road trip through Detroit shawarma spots, and I still crave it when the grill fires up.
Why You Should Try This Sumac Potato Salad
Sumac Potato Salad brings citrusy tang from ground sumac, fresh herbs, and a punchy vinaigrette that wakes up classic potato salad. You still get cozy comfort from tender potatoes, but the flavors feel lighter and sharper.
You can serve it mayo-free or fold in a spoonful of yogurt for a creamy twist. It travels well, sits happily at room temp for a bit, and pairs with just about anything off the grill.
Ingredients You’ll Need
- Yukon Gold or red potatoes, 2 pounds, cut into 1 inch chunks
- Yukon Gold gives a buttery bite; red potatoes hold shape best. Skip Russet since it crumbles.
- Ground sumac, 2 to 3 teaspoons
- I like Spicewalla or Penzeys; taste yours and adjust because tartness varies.
- Extra virgin olive oil, 1/3 cup
- Fresh lemon juice, 2 to 3 tablespoons
- Or use 1 to 2 tablespoons red wine vinegar for a sharper edge.
- Dijon mustard, 2 teaspoons
- Garlic, 2 small cloves, grated or pressed
- Pantry shortcut: use 1 teaspoon good jarred minced garlic.
- Red onion, 1/2 medium, very thinly sliced
- Swap in 2 shallots for a milder bite.
- Fresh parsley, 1/2 cup chopped
- Add mint or dill for extra herbiness.
- Ground cumin, 1/2 teaspoon
- Optional but tasty; a pinch of za’atar also works.
- Kosher salt and black pepper
- Optional add-ins: 2 tablespoons capers, 1 small cucumber diced, 1 roasted red pepper chopped, 1 teaspoon Aleppo pepper flakes
- Optional creamy twist: 2 to 3 tablespoons plain Greek yogurt or mayo
Equipment:
- Large pot and colander
- Sheet pan or large tray for cooling
- Large mixing bowl and whisk
- Cutting board and chef’s knife
- Microplane or garlic press
- Measuring cups and spoons
How to Make Sumac Potato Salad
Prep and boil the potatoes
- Scrub and cut the potatoes into 1 inch chunks. Place them in a pot and cover with cold water by 1 inch.
- Salt the water generously so it tastes like the sea. Bring to a boil, then simmer until just tender, 12 to 15 minutes.
- Pierce a chunk with a paring knife. If it slides off easily, you are good to go.
Make the sumac dressing
- Whisk olive oil, lemon juice, Dijon, garlic, cumin, 1.5 teaspoons sumac, 1 teaspoon salt, and several grinds of pepper.
- Taste and adjust acid or salt. The dressing should taste bold because the potatoes will mellow it.
Cool and season the potatoes
- Drain the potatoes and spread them on a sheet pan. Let steam escape for 3 to 5 minutes so they dry a bit.
- Drizzle 2 tablespoons of dressing over the warm potatoes and toss gently. Warm potatoes soak up flavor like champs.
Soften the onion
- Toss the sliced red onion with 1 tablespoon lemon juice or a splash of the dressing. Let it sit for 5 minutes.
- This quick soak takes the edge off and keeps the crunch.
Toss and marinate
- Add potatoes, onions, parsley, and any add-ins to a large bowl. Pour over most of the remaining dressing.
- Toss gently to coat, then let the salad rest for 10 minutes so flavors mingle.
Finish and adjust
- Sprinkle the remaining sumac over the top for color and zing. Add more salt, pepper, or lemon to taste.
- For a creamy style, fold in yogurt or mayo now. Serve slightly warm or chilled.
Tips & Tricks
- Start potatoes in cold water so they cook evenly and keep their shape.
- Salt the cooking water well to season the potatoes from the inside out.
- Cut uniform chunks so everything finishes at the same time.
- Dress the potatoes while warm to lock in flavor.
- Tame sharp onion by soaking slices in cold water with a splash of vinegar for 5 minutes.
- Add herbs at the end so they stay bright and fresh.
- Taste your sumac and adjust; some batches skew extra tart.
- Batch the dressing in a jar and stash it in the fridge for quick weeknight salads.
- Short on time? Use pre-cooked vacuum-packed baby potatoes and slice them in half.
- Turn leftovers into a crispy breakfast hash with a skillet and a fried egg.
What to Serve with Sumac Potato Salad
This salad loves anything grilled, like chicken thighs, salmon, shrimp, or veggie skewers. It also plays nicely with falafel, shawarma-spiced tofu, and juicy tomatoes with cucumbers and tahini. Warm pita, olives, and a simple chopped salad round out a picnic spread.
Make-Ahead and Storage
Chill the salad in an airtight container for up to 4 days. The flavor deepens overnight, so plan a quick splash of lemon and a pinch of salt before serving. Keep herbs extra fresh by folding in a handful of new parsley right before you eat.
I do not recommend freezing, since potatoes turn mealy after thawing. If you prefer it warm, bring the salad to room temp, then rewarm gently in a skillet with a little olive oil. If you add yogurt or mayo, keep it nicely chilled and limit time at room temp to 2 hours.

Sumac Potato Salad
Ingredients
Instructions
- Place the potato chunks in a large pot and cover with cold water by about 1 inch. Add 1 1/2 teaspoons kosher salt.
- Bring to a boil over medium-high heat, then reduce to a gentle simmer and cook 10–15 minutes, until the potatoes are just tender when pierced with a fork but not falling apart.
- Drain the potatoes well and spread them out on a tray or large baking sheet to steam-dry for 5–10 minutes.
- While the potatoes cook, whisk together the olive oil, lemon juice, sumac, red wine vinegar, minced garlic, Dijon mustard (if using), black pepper, and cumin (if using) in a large bowl to make the dressing. Adjust salt to taste.
- Add the warm potatoes to the bowl with the dressing and gently toss to coat, taking care not to break them up too much.
- Fold in the red onion, parsley, dill, mint, and scallions. Taste and adjust seasoning with additional salt, pepper, lemon juice, or sumac as desired.
- Let the salad sit for at least 15–20 minutes at room temperature to allow the flavors to meld, or chill for up to several hours before serving.
- Serve slightly warm or at room temperature as a side salad.
Notes
Approximate per serving (1/6 of recipe): 210 calories; fat 9 g; saturated fat 1.5 g; carbohydrates 30 g; fiber 3 g; sugars 2 g; protein 4 g; sodium 320 mg. Values will vary based on exact potato type, oil brand, and portion size.
