Shawarma ma' Khiyar Mkhallal (شاورما مع خيار مخلل) is the wrapped shawarma built specifically around pickled cucumber, the cool brined crunch named in the title doing the work that lettuce or tomato might do in a blander wrap. The angle is acid against fat. Shawarma off the vertical spit is rich, the outer edge crisped and the inner meat basted in its own rendered fat, and the pickled cucumber is there to cut straight through it. Get the ratio right and the wrap stays bright bite after bite; get it wrong and either the meat smothers the pickle or the brine sourness takes over and flattens the spiced meat.
The build is the standard Lebanese shawarma assembly with the pickle promoted to a load-bearing element. Khubz or a thin saj-style flatbread is laid flat, sometimes warmed on the griddle so it folds without cracking. Shaved meat goes down in a line, beef or chicken depending on the spit, carved thin so the seasoned crust is distributed through the roll rather than clumped. Toum or tahini follows, a sauce streak rather than a flood, and then the pickled cucumbers, sliced into spears or coins and laid the length of the wrap so the crunch reaches every section. The whole thing is rolled tight, the seam often pressed on a hot surface so the bread crisps and the fillings set. Good execution shows in proportion and structure: enough pickle that its acid registers in every bite, meat carved fine enough to fold, a roll that holds together without weeping through the bread. Poor execution is a wrap with two cucumber slices buried at one end, or a soggy seam from sauce overload, or pickles so harsh they bury the spice.
It sits in the family of single-condiment shawarma wraps, defined by what gets foregrounded against the meat. The turnip-pickle version trades the cucumber's clean cool snap for the deeper, earthier sourness of lift; the toum version drops the pickle entirely and leans on raw garlic emulsion for its edge; the tahini version answers the fat with sesame richness instead of acid. This cucumber form is the most straightforwardly refreshing of them, the pickle providing crunch and tang without the staining color or assertive funk of the turnip. It is essentially the plainest expression of the acid-against-fat idea that defines good shawarma: rich spiced meat, a sharp cool foil, and bread that holds the two together long enough to eat standing up.