Mix the dry dough ingredients together. Gradually stir in the mineral water with the whisk until a very thick dough is formed. Let stand for 10 minutes. If necessary, stir in a little more mineral water.
Remove the core of the zucchini. Grate the zucchini and cut the spring onions into slices. Mix both with the dough.
Heat enough oil in a medium-sized pan to completely cover the bottom. Put several piles of dough in the pan, spread with a spoon and flatten. Bake the buffers over medium heat for 5 - 7 minutes on each side. Drain on kitchen paper and serve with a chilli dip.