Put 1 liter of water in the bowl, place the basket with the beans inside, close the lid and cook: 10 min. 100° speed 2 and set aside to cool.
In the empty bowl, place the onion and chop: 5 sec. speed 7.
Gather on the bottom with the help of the spatula and add the oil, fry: 3 min. 100° speed 1.
Add half of the cooked fava beans and blend: 10 sec. speed 7.
Gather on the bottom with the help of the spatula and add the broth, cook: 10 min. 100° speed 1.
Add the pasta and cook: (time indicated on the package) 100° Reverse speed 1.
5 minutes from the end, add the rest of the fava beans and continue cooking.
Check for salt, plate and serve as desired with grated pecorino cheese... Buon appetito!
Halfway through cooking the pasta, I checked the amount of broth left, if everything is absorbed, add more.
If you like, you can add diced bacon to the sauté.