Wash the potatoes under cold running water, scrub as needed. Cover with water in a large pot, add a pinch of salt, and boil. Reduce to simmer for 15-20 minutes, until fork-tender.

While potatoes simmer, whisk together olive oil, lemon juice, sumac, salt, and pepper in a bowl. Set aside.

Drain cooked potatoes and let cool for about 5 minutes. Cut into bite-sized cubes.

In a mixing bowl, combine potatoes, parsley, onion, cucumber, tomatoes, olives, and feta. Enjoy the vibrant colors!

Pour dressing over the mixture, gently toss to combine. Avoid mashing the potatoes.

Taste and adjust seasoning if necessary before serving.

Serve warm or chill in the fridge for at least 30 minutes. Garnish with parsley before serving.