Find recipes for Potato Gnocchi and other Course recipes. Get all the best recipes at . Recipe directions: In a large bowl, combine the mashed potatoes, flour and salt. In another bowl, whisk the eggs, yolk and olive oil; add to potato mixture. Turn onto a heavily floured surface; knead for 3-5 minutes or until smooth. Divide into fourths. On a floured surface, roll each portion into 3/4-in.-thick ropes; cut into 1-in. pieces.