Wash thyme, shake dry and chop leaves. Crumble the yeast into a large bowl. Add 150 ml lukewarm water and sugar and stir until smooth. Add 5 tbsp. oil, egg white, salt, 360 g flour and thyme and knead to a smooth dough using the dough hooks of the mixer.
Cover and leave to rise in a warm place for about 1 hour.
Line two baking trays with baking paper. Preheat the oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Cut the dough in half and shape each into a roll. Divide each roll into approx. 30 equally sized pieces.
First form the dough pieces into small balls, then roll them on some flour into thin sticks (about 1 x 18 cm long).
Spread the grissini on the baking trays. Mix 2 tablespoons of oil and sea salt. Brush Grissini with it and bake in a hot oven for 15-18 minutes one after the other until golden brown. Leave to cool and store in a dry place.