The present invention relates to a potato derived flavour enhancing composition having a dry matter content of at least 3 wt. % and containing per kg of dry matter: •150-900 g of proteinaceous matter; •0-100 g of starch; •0-5 mg of chlorogenic acid; •0-30 mg of glycoalkaloid selected from α-solanine, α-chaconine and combinations thereof; wherein free amino acids represent at least 80 wt. % of the proteinaceous matter, said free amino acids comprising: •a first group of free amino acids selected from asparagine (Asn), aspartate (Asp), glutamate (Glu), glutamine (Gln), pyroglutamate (pGlu) and combinations thereof, said first group of free amino acids representing 45-95 wt. % of the free amino acids; •a second group of free amino acids selected from glycine (Gly), leucine (Leu), lysine (Lys), serine (Ser), isoleucine (Ile) and combinations thereof, said second group of free amino acids representing 1-20 wt. % of the free amino acids; •at least 3.5 wt. % Glu; wherein the first group of free amino acids and the second group of free amino acids are present in a weight ratio of at least 4:1. The flavour enhancing composition according to the present invention is obtained by removing most of the starch and protein naturally present in potato, by additionally removing the bulk of glycoalkaloids (α-solanine, α-chaconine) that are endogenous to potato, and by retaining flavour enhancing components, including glutamate.