Mix flour, yeast, sugar and salt. Add 400 ml of lukewarm water and knead to a smooth dough with the dough hooks of the hand mixer. Cover the dough and let it rise in a warm place for about 1 hour
Knead 2/3 of the sunflower seeds into the dough. Divide the dough into pieces weighing about 80 g. Form dough pieces into round rolls and place them on 2 baking trays lined with baking paper. Spread the rolls thinly with water and sprinkle with the remaining sunflower seeds. Cover the rolls and let them rise for another 45-60 minutes
Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: see manufacturer) for approx. 18 minutes one after the other. Remove and let cool on a cake rack
waiting time approx. 1 3/4 hours