Step 1

Heat oil on medium heat in a large, deep skillet. Add onion, carrots, and garlic and sauté for 1 minute. Add ground beef and pork and continue to cook.

Step 2

When meat is browned and onions are soft, add tomatoes.

Step 3

When tomatoes have softened and have started to release their juices (about 4-5 min) add basil, sugar, salt and pepper (if you are using whole tomatoes, mash them with a potato masher or spatula to release all their juices).

Step 4

Simmer for at least 3 hours (and up to 6 hours), stirring occasionally. The longer you simmer, the better. Important: tomatoes burn easily, so keep an eye on them and add beef broth a little at a time to thin sauce if needed.

Step 5

In a large pot, cook spaghetti in salted water to al dente, drain completely and return to pot. Add sauce to the spaghetti noodles and toss until noodles are covered.

Step 6

Serve immediately.