Peel cucumbers and chop into small pieces. The size of your chopped cucumber is based on your preference. I like to add a little more texture to my jajeek, so I chop my cucumber into medium-sized pieces
Combine and stir chopped cucumbers, lebne, kefir, salt, minced garlic, and crushed mint leaves into a bowl.
You can add more salt and garlic to taste.
Sprinkle mint and sumac on salad as a garnish before serving.