There are 4 classic Roman pasta dishes. You know how to make two of them. Cacio e Pepe and carbonara. There are two left. Pasta Alla Gricia and Amatriciana. Before tomatoes were introduced to the region surrounding Rome, Italians relied on animal fats and cheeses to make their pastas. Pasta Alla Gricia is very similar to Cacio e pepe, but with guanciale and it’s fat. Then tomatoes were introduced and was added to Alla gricia, transforming it to what we know as Amatriciana. Essentially a tomato sauce cooked in pork fat to give it flavor and seasoned with black pepper and pecorino. It’s delicious. Learn how it’s done.