1. Add all the ingredients into a blender and blend it to make the pesto.
2. Cook pasta as per the instructions on the packet.
3. In a pan, melt butter, add pesto and toss for a few seconds. Add cream and mix, cook on low until it starts simmering. Add cheese and mix, season with salt if needed.
4. Cook until the cheese melts into a creamy cheese sauce. Take the heat off.
5. If you wish, you can toss broccoli and spaghetti into the rocket pesto sauce and serve or spoon the sauce on the serving plate and serve it with spaghetti and broccoli.

Enjoy your meal!