The invention relates to a method for preparing food to be preserved with sugar, comprising steps consisting in: placing the food to be preserved in a cooking vessel with a pre-determined quantity of sugar syrup or honey syrup； carrying out a primary cooking process by heating the food to be preserved and exposing same to a pressurised steam atmosphere for a primary cooking time； decompressing the cooking vessel and leaving the food to be preserved to macerate in the syrup for a maceration time； and carrying out a secondary cooking process by heating the food to be preserved and exposing same to a pressurised steam atmosphere for a secondary cooking time.
