Egg yolk pasta dough

1.Process ingredients and a pinch of salt in a food processor until a dough forms. Turn onto a lightly floured surface, knead until smooth and elastic (3-5 minutes), wrap in plastic wrap and set aside to rest at room temperature (1 hour). Divide dough into four, then, working with one piece at a time, feed dough through pasta machine rollers, starting at the widest setting. Lightly flour dough as you fold and feed it through, reducing settings notch by notch, until pasta is 3mm thick.