Heat a pan over low heat, add the guanciale, and cook slowly until golden and the fat has rendered.

Amatriciana
Amatriciana is a traditional Roman pasta dish made with guanciale, tomatoes, and onions.
What You'll Need
Instructions
Remove the golden guanciale to a paper towel to drain the fat, and sauté the onion in the same pan.
Once the onion is well cooked, add the cherry tomatoes and cook.
When the cherry tomatoes start to break down, splash in a very small amount of white wine.
Once the wine has evaporated, add the whole peeled tomatoes and simmer thoroughly.
While simmering, boil the spaghetti for 8 minutes according to the manufacturer's guidelines.
⏱️ 8m 0sRemove the spaghetti after 6 minutes of boiling, add it to the pan, and cook while adding water as needed.
Taste and adjust seasoning with salt, then add the Pecorino Romano.
Add olive oil and black pepper, and if desired, add peperoncino, then mix well.