On flat clean surface, form a pile of flours, salt, and cocoa.Spoon the middle so you can add eggs and oil. Knead for 15 minutes to get firm and smooth dough.

Form a roll and cut to several pieces. If your dough is not smooth you may add 1 tablespoon of warm water to the dough and knead until easy to handle.

Run each piece through your pastry machine set to 3. Fold it in half and send every patch through again.

Then you run the flat dough through middle cutter to get tagliatelle. If cooking immediately, 1 ½ to 2 minutes in boiling water are enough.

If you place them to floured surface to dry for a few days if making pasta in advance, they need to cook longer: once they float to the surface, let them boil for another minute.