Bring a pot full of water to the boil over high heat. Add the salt and the pasta. Cook the pasta according to the instructions on the package. Reserve 150-200 ml (about1 cup) of the pasta water before straining.
For the broccoli pesto:
Put the broccoli, anchovies, parmesan, olive oil and garlic in a food processor. Season with salt and pepper, mash well and set aside.
Place a large pan over medium heat. Once hot, add the butter, a little olive oil and pasta broccoli and sauté a little.
Remove the pan from the heat, add the broccoli pesto, water from the boiling pasta and the farfalle. Stir well and serve.
Notes
#tsoulotip:1. To keep the broccoli bright green, put it first in iced water, boil it, and then put it back in iced water to cool. 2. Add a little olive oil to the pan with the butter so that the butter does not burn.