In a food processor, process garlic scapes with lemon juice, salt and pepper until finely chopped. Add cannellini beans and process to a rough purée.

With motor running, slowly drizzle olive oil through feed tube and process until fairly smooth. Pulse in 2 or 3 tablespoons water, or more, until mixture is the consistency of a dip. Add more salt, pepper and/or lemon juice, if desired.

Spread out dip on a plate, drizzle with olive oil, and sprinkle with more salt.  Serve with bread, tortilla chips, etc.