Grind buckwheat to coriander together. Mix all dry ingredients to +. Fill up carbonated mineral water + kefir to 700 g, possibly more, add it, it has to be like a batter, rather a little more liquid, then the dough rises better. How much liquid is needed depends largely on the age of the grain. I noticed that freshly ground corn absorbs a lot. (That`s why I don`t use corn as breading)
Pour into a 30 cm rectangular cake pan lined with baking paper (also covered in baking tins). Place the sunflower seeds or sesame seeds on top of the dough, press down lightly. Bake in a cold oven with a cup of water at 160 ° C for 70 minutes. Needle sample.
Baking for longer doesn`t do anything except toughen the crust.
Preheat with top + bottom heat to approx. 180 ° -190 ° C + bake for approx. 45-60 minutes. Leave the oven to cool on a wire rack, then remove the baking paper; if the baking paper is removed beforehand, the crust will usually be hard.
Bread pops open at the top, even if I notch the bread, gluten-free is not that easy, because the dough is very runny. But it doesn`t matter in terms of taste.