Add the pancetta to a food processor or use a sharp knife to mince it until finely chopped.
Place a large pot over medium low heat and add 2 tablespoons of EVOO. Once warm, add the pancetta and let it sweat gently, releasing its flavorful fat.
Add the chopped onion, celery, and carrots to the pot. Stir, then cover with a lid and cook the soffritto for about 10 minutes, checking and stirring every 2 minutes to prevent burning.
After around 7 minutes, when the vegetables are soft and glossy, pour in a splash of red wine and mix it. Close the lid again and let the flavors combine for another couple of minutes.
Drizzle in a little more EVOO, then add the ground beef and pork. Use a wooden spoon to break up the meat thoroughly and mix it well with the soffritto.
Once the meat begins to brown and turns grey, pour in the remaining wine and stir well. Season generously with salt and pepper, and let it simmer for 10 minutes.
Next, add the tomato paste and stir it through until fully incorporated. Pour in the passata and add the peeled tomatoes, using your laddle to gently break them up in the pot.
Cover with a lid and cook the ragu on low heat for 3 hours. Stir every 30 minutes, scraping the bottom to make sure nothing sticks.
After 3 hours, remove the lid and continue cooking uncovered for another hour to reduce and intensify the flavor. Stir regularly and adjust the seasoning with more salt and pepper if needed.
Optional but recommended: For a silkier, more balanced sauce, add a splash of full cream milk and cook for another 5 minutes before turning off the heat.