Abstract: The present invention relates to flavour generation. In particular the invention relates to a process for the preparation of a flavour composition. The process comprises forming a deep eutectic solvent, preparing a reaction mixture comprising the deep eutectic solvent and flavour precursors, and heating the reaction mixture to form aroma compounds. The deep eutectic solvent is a liquid based on a combination of at least two compounds solid at 25° C. and comprises water and/or glycerol in an amount insufficient to dissolve all the compounds solid at 25° C. individually, or in an amount such that all the compounds solid at 25° C. are simultaneously saturated at 25° C. The flavour precursors may comprise the compounds solid at 25° C. on which the deep eutectic solvent is based. A further aspect of the invention is a food product comprising the flavour composition obtainable by the process of the invention.