Place the fava beans in a bowl, cover them with water to a depth of
2 inches, and allow them to soak overnight. The next day, drain the
beans and peel off the skins. Place the beans in a saucepan, cover them
with cold water to a depth of 2 inches, and simmer, partially covered,
until the beans are very tender, about 1½ hours. Drain.
Turn
on a food processor. With the machine running, drop in the garlic, scallions,
cilantro and mint and process until finely minced. Remove 2 tablespoons
of this mixture and set aside.
Add
the beans, ¼ cup of the olive oil, the cumin, paprika and lemon
juice to the food processor and process until smooth. Season to taste
with salt and pepper. Place the purée in a shallow dish and drizzle
with the remaining olive oil. Sprinkle the reserved herb and garlic
mixture on top and serve with pita bread for dipping.