The scope of this invention is a production method on a powdered mixture that does not contain any food additives and gives a thick low glycaemic index soup by adding hot water. Industrially produced soups and instant soups are present on the market. These kinds of soups have some certain disadvantages for consumers. These kinds of soups need additives to give flavour, take a long time to be prepared, have high glycaemic indices, and can clump with hot water. A thick instant soup with no visible phase separation can be obtained by applying at least one wetting, two tempering, and one roasting process to chickpeas for any time and adding necessary savour substances and water above 80° C. to the powdered product.
