Rigatoni alla Genovese

Ingredients for enough sauce for 2 pounds of dry rigatoni (8 servings):

Render pancetta in olive oil on medium heat. Sear beef chuck on high. Add the pancetta to the celery and carrot and cook on medium-high for 5 minutes. Deglaze the pan using the tomato paste, wine, bay leaf, and pepper. Add onions. Bring to a boil on medium. Cook on low for 8-10 hours.

source: https://foodwishes.blogspot.com/2016/03/rigatoni-alla-genovese-maybe-best-meat.html