Place garlic and salt into bowl of food processor and blend until garlic is finely chopped.
Add paprika, cumin seeds, black pepper, ginger, and allspice. Process 15 seconds.
While processor is running, pour olive oil through cover opening until mixture forms paste.
In a large saucepan, combine the completed spice paste, sweet potatoes, broth or water, tomatoes with juice, chickpeas, and okra. Bring to a boil over high heat. Reduce heat to low and simmer, covered, for 15 minutes.
Uncover and simmer 10 minutes more or until vegetables are tender.