Italian Sunday Sauce

Ingredients:
2 pounds boneless beef chuck roast

4 tablespoons olive oil, divided

1 pound uncooked sweet or hot Italian sausage links

5 cloves garlic

3 to 4 large sprigs fresh basil

3 tablespoons tomato paste

2 (28-ounce) cans whole peeled tomatoes, preferably San Marzano

1 1/2 teaspoons kosher salt, plus more as needed

1 teaspoon granulated sugar, plus more as needed

1/4 teaspoon freshly ground black pepper, plus more as needed

Cooked spaghetti, for serving

Instructions: