Combine yeast, sugar and 20 ml of water in a small bowl. Let the yeast bloom.
Meanwhile, combine spelt flour, corn flour and salt in a mixing bowl.
Add chia seeds and mix.
Add yoghurt, egg and the yeast and sugar mixture. Mix.
Add water and knead it into a smooth, pliable dough.
Knead for about 6-8 minutes.
Round the dough. Cover and rest it for about an hour or until it doubles in volume.
Knock the dough and knead it once again. Then, transfer this dough to a greased baking mould.
Sprinkle some chia seeds and dry spelt flour. Cover and let the dough rest for another 30 minutes in a warm place.
Preheat the oven to 200 degrees C for 10 minutes.
Transfer the baking mould to the oven. Bake the bread at 200 degrees C for about 40 minutes.
Then, take it out and let it cool.
Once cooled, slice and serve.