Grape leaves -- commonly called vine leaves -- feature in lots of Mediterranean recipes. The fresh leaves themselves don't contain much nutritional value, with only 3 calories per leaf and 73 percent water content, according to the USDA National Nutrient Database. Usually, the leaves are stuffed with rice or other fillings. These little parcels are suited to cooking in a pressure cooker. In particular, the pressure cooker makes a fast way to soften leaves fresh from the vine.
