Beat egg white and salt until stiff, slowly adding sugar. Continue beating the beaten egg whites until the sugar is dissolved and a shiny mass is formed.
Pour the beaten egg whites into a piping bag with a medium-sized perforated spout and spray about 35 small tuffs onto a baking tray lined with baking paper. In a preheated oven (electric cooker: 90 °C/ circulating air: 65 °C/ gas: see
manufacturer) bake for about 1 1/2 hours. Open the oven door and let the meringue tuffs cool down.