Prepare the carrot greens by picking out any browned leaves, then cutting the feathery leaves from the long green stems (and discard the stems). Soak them in a bowl of water for a few minutes, then rinse. Repeat. Shake the excess water from the carrot tops, then dry in a salad spinner or gently in a clean tea towel.
Add all ingredients to a food processor and whiz until a thick paste. You might need to stop and scrape the sides down a few times.
Slowly add the cold water.
Add more water if needed.
Taste and add more salt and pepper if needed
I like to serve mine with a bit of extra parm grated on top and a swirl of olive oil.
Serve with crackers, bagel chips, crudités, crispy parmesan carrots, or toasted bread rounds.