| 1/4 | c | Safflower or other high-quality vegetable oil |
| 2 | c | Coarsely chopped yellow onion |
| 2 | c | Chopped red; green, or gold sweet pepper |
| 1 | tb | Ground cumin |
| 2 | ts | Ground coriander |
| 1 | | Entire head garlic; coarsely chopped |
| 2 | lb | Boiling or baking potatoes or sweet potatoes; peeled and sliced |
| 3 | c | Peeled; seeded, and chopped ripe tomatoes, or 1 can (28 ounces) crushed Italian plum tomatoes, including juice. |
| 1 | qt | Homemade chicken stock; canned chicken broth or flavorful homemade vegetable stock |
| 1 | tb | Freshly grated lemon zest |
| 2 | tb | Freshly squeezed lemon juice |
| | Salt |
| | Freshly ground black pepper |
| | Ground cayenne pepper |
| 3 | tb | Chopped fresh mint or cilantro |
| | Freshly minced lemon zest for garnish |
| | Fresh mint or cilantro sprigs for garnish |
