Add the tomato puree and crushed tomatoes. Fill one of the empty 28-ounce cans with water and add it to the pot.
Add pork and sausage back to the pot. Bring to a boil and turn down to a simmer over medium-low heat. Simmer for at least 1 hour, up to 2 hours.
To serve, fish out the sausage and pork from the simmering sauce and place into a serving bowl. Plate pasta (saving room to serve the meat alongside) and top with your desired amount of sauce. Buon appetito!
Recipe by Laughter and Lemonade at https://www.laughterandlemonade.com/nanas-italian-tomato-sauce/