Pesto is traditionally prepared in a marble mortar with a wooden pestle. However they were vulnerable to a direct hit from artillery and mortar shells. The slab track consists of rails, fasteners and track slabs with a cement asphalt mortar. The fronts had facades with lines painted on the surface imitating brick mortar. Immediately they began to receive artillery, mortar, and sniper fire. Other alternatives are a mortar and pestle or a food processor. The concrete was made of nothing more than rubble and mortar. The main building material for the Hagia Sophia composed of brick and mortar. Aluminum is also damaged by wet mortar and wet plaster. Most provinces are also providing a venue for purchase through physical brick and mortar stores. It is a basic ingredient of concrete, mortar and many plasters. Sumerian structures were made of plano-convex mudbrick, not fixed with mortar or cement. Fried tempeh mixed with "sambal" chili paste in a mortar and pestle. It looks and functions very similarly to a western mortar and pestle. The enclosure walls were made of stones laid in mortar.