Products based on the aromatic essential oils of plant materials that are distilled by various means. In extracts the highly concentrated oils usually are suspended in alcohol to make them easier to combine with other foods in cooking and baking. Almond, anise, lemon, mint, orange, peppermint and vanilla are some of the pure extracts sold. Some undiluted oils also are available, usually at pharmacies. These include oil of anise, oil of cinnamon, oil of cloves, oil of peppermint and oil of wintergreen.