Preheat the oven to 400°F.
Prick the sweet potatoes all over with a fork and roast on a foil-lined baking sheet until soft, about 1 hour. When cool enough to handle, peel the sweet potatoes or scoop out the flesh, whichever you find easier.
Combine the sweet potato flesh with the remaining ingredients in a food processor and process until smooth. Taste and adjust seasonings if desired.
Serve with crackers, vegetable chips, or crudités. (Can be made 3 days ahead. Cover and refrigerate.)
• If you have a harissa spice blend or harissa paste on hand, feel free to substitute that for the individual spices. Mixtures vary, so start with about a teaspoon of dry or wet harissa and adjust to taste.
Original Recipe found @ KCET Food