All icings, frostings and even the mustard for the biscuits are made in-house. Sugar pastes are usually used for frosting and icings, or sweet centers in pastry. Egg whites and basic icings are both used as glazes. This form of ice is also called overflow, icings, or the Russian term, naled. Snow loads and icings are two principal issues for roofs. Another rule difference between the NHL and the IIHF rules concerns how icings are called. Icings are also called, but are usually referred to as illegal clearing.