CAVATELLI WITH SAUSAGE AND RADICCHIO

Steps:

• In an 8- to 12-quart pot, bring 6 quarts (24 cups) salted water to a rolling boil.
• In a large nonstick skillet, heat 2 tablespoons of the olive oil over medium-high heat until hot but not smoking. Add the sausage and cook, breaking it up with a wooden spoon, until browned but not yet crispy. Remove the meat from the skillet with a slotted spoon and set aside.
• Add the onions and remaining tablespoon of olive oil to the skillet and saute until the onions are soft. Add the sausage back along with a pinch of red pepper flakes and saute an additional minute. Reduce the flame to medium low and pour in the wine, cooking until it is reduced by half, 3 to 4 minutes. Remove the sauce from the heat.
• Add the pasta to the boiling water and cook until al dente. Drain the pasta and add it to the sauce in the skillet. Add the Parmigiano-Reggiano and radicchio and toss to combine the ingredients. Garnish with the crushed walnuts, a drop of extra-virgin olive oil and a light dusting of freshly grated Parmigiano-Reggiano.