PROBLEM TO BE SOLVED: To provide a flavor enhancer enabling increase in deliciousness of food and drink, addition of rich taste to the food and drink and favorable meltability of palatability of the food and drink which are not sufficiently achieved by addition of conventional seasoning, natural extract and/or the like and to provide a method for enhancing flavor.SOLUTION: The flavor enhancer comprises an Amadori compound or its salt represented by formula (1) (wherein Ris a 1-deoxy-2-ketose-1-yl group derived from a saccharide group selected from among glucose, xylose, galactose, rhamnose, fructose and mannose and Ris a monovalent group produced by removing -NHfrom an amino molecule selected from among serine, glycine, proline, histidine, arginine, alanine, an aspartic acid, a glutamic acid, a pyroglutamic acid, phenylalanine, threonine, cysteine, cystine, glutamine, asparagine, methionine, tyrosine, tryptophan, valine, isoleucine, lysine and leucine).