For the soup base
01 -
1 tablespoon unsalted butter
02 -
1 tablespoon extra-virgin olive oil
03 -
1 small yellow onion, finely diced
04 -
1 medium carrot, finely diced
05 -
1 celery stalk, finely diced
06 -
2 cloves garlic, minced
07 -
6 cups (1.4 L) low-sodium chicken broth
08 -
1 Parmesan rind, about 2-3 inches
09 -
1/2 teaspoon kosher salt, plus more to taste
10 -
1/4 teaspoon black pepper
For finishing
11 -
1 cup (170 g) pastina, stelline, acini di pepe, or another tiny pasta
12 -
1/2 cup (45 g) freshly grated Parmesan cheese, plus more for serving
13 -
2 tablespoons chopped fresh parsley
14 -
1 teaspoon fresh lemon juice, optional