Cutting a roast is a common cooking technique used to prepare large cuts of meat. Carving a roast is the process of cutting it into smaller, more manageable pieces. This is usually done with a sharp knife and can be done in a variety of ways depending on the desired outcome. Carving a roast can be used to create thin slices for sandwiches or thicker slices for roasts. It can also be used to create uniform cubes for stews or stir-fries.