Vendors whisk it up on the spot from nothing more than yogurt, cold water, and a pinch of salt — no blender, no syrup, just a shaker and ice.
Plain yogurt is thinned with cold water and salt, shaken until frothy, and poured over ice. Beirut's street carts, especially near grill and shawarma stands, sell it in tall cups as the go-to wash-down for something rich and salty.