Mix both types of flour, yeast and salt well in a large bowl. Add 720 ml lukewarm water and knead to a smooth dough using the dough hooks of the mixer. The dough is quite soft. Cover and leave to rise at room temperature for about 2 hours.
Then put it in the fridge. The dough can be processed within 1-2 weeks.
For the baguette, line a baking tray with baking paper. Remove approx. 1⁄3 from the basic dough on the same day. Put the rest of the dough in a bowl covered with foil and chill. Knead the dough on a floured work surface.
Shape into an oblong baguette. Place on a baking tray, dust with a little flour and leave to rise covered at room temperature for about 1 hour. Preheat the oven (electric cooker: 250 °C/circulating air: 225 °C/gas: see
manufacturer). Put the baguette into the hot oven and bake for about 10 minutes. Turn down the temperature (electric oven: 225 °C/circulating air: 200 °C/gas: see manufacturer) and bake for another 8-10 minutes.
Let it cool down on a cake rack.
Line a baking tray with baking paper for the rolls. Approx. 1⁄3 of the basic dough on another day on a work surface dusted with flour to form an elongated strand. Cut into 8 pieces.
Form the dough pieces into rolls and place them on the baking tray. Cover and leave to rise at room temperature for about 1 hour. Preheat oven (electric oven: 250 °C/circulating air: 225 °C/gas: see manufacturer). Brush the roll with some water.
Sprinkle with poppy seeds, pumpkin seeds and oat flakes. Bake in a hot oven for about 10 minutes. Turn down the temperature (electric oven: 225 °C/circulating air: 200 °C/gas: see manufacturer) and bake for another 5-7 minutes.
Let it cool down on a cake rack.
For the flatbreads, line a baking tray with baking paper. Remove the rest of the basic dough from the fridge on the last day of baking. Form 2 small flat breads from the still cold dough on a floured work surface.
Place on the baking tray, cover and leave to rise in a warm place for about 1 hour. Preheat oven (electric cooker: 225 °C/circulating air: 200 °C/gas: see manufacturer). Brush each flatbread with water. Sprinkle with white and black sesame seeds.
Bake in a hot oven for 10-15 minutes. Remove and let cool on a cake rack.