Put buckwheat flour, all-purpose flour and water in a food processor. Process to blend well until the dough is soft and smooth. If the dough is too crumbly, add a little more water. If the dough is too sticky, add a little more flour. Of course, you can knead the dough without the food processor, by hand.

I roll the dough on the pasta roller machine. Flour the noodle sheets and cut. Give noodles a dusting of flour so they don’t stick together. Let them dry on a flat surface.

Cook the soba in salty boiling water for about 1 minute. Drain them and rinse them under cool water immediately.