In a small bowl, mix sugar, 100ml water and yeast and let it rest for 2-3 minutes, or until the yeast bubbles.
In a big mixing bowl, combine flour and salt.
Add the yeast and sugar mix.
Add quark and chia seeds.
Add water. Stretch and knead the dough for 10 minutes.
Add oil and knead it again for another 5 minutes.
Cover and rest the dough till it doubles in size. It should typically happen in an hour at a room temperature of about 25 deg C.
Knock the dough and knead it for a minute.
Transfer the dough to a greased and dusted baking mould.
Sprinkle some more chia seeds on top and press them so they stick to the dough.
Cover and rest it for about 30 minutes.
After 30 minutes, the dough will rise again.
Preheat the oven to 200 deg C for 10 minutes.
Transfer the mould to the oven and bake at 200 deg C for about 45 minutes.
Remove the bread and let it cool on a wire rack.
Once it cools, slice it.