The flavor of roasted caramelized onions is a universal favorite that add sweetness and depth to countless recipes. When grilled, the onions — and in this case shallots — take on a smoky char as well. Here, they are served on top of thick labneh (strained Middle Eastern yogurt) to be eaten as a side or an unusual dip with grilled pita. This recipe calls for grilling the shallots slowly over indirect heat, giving them plenty of time to soften, brown and absorb the smoke. Or you can use the oven instead if need be, but you won't get that smoky flavor.
Light or heat one side of grill. Leave the other side bare for indirect grilling. (If using a charcoal grill, mound coals to one side.) Lightly brush skewers with 1 tablespoon of the olive oil and place over bare side of the grill for indirect heat. Cover and cook, turning occasionally, until the garlic is soft, 30 to 35 minutes.
03When the garlic is soft, remove from grill or oven. Transfer onion and shallot to the hottest part of the grill (add more coals if necessary) and continue cooking, turning occasionally, until onions are almost tender and well charred in spots, 15 to 20 minutes more.
04When cool enough to handle, coarsely chop onion and shallot and place in a large bowl. Mash garlic and add to bowl. Toss in remaining 4 tablespoons oil, the chopped parsley and mint, the preserved lemon, the lemon juice and the salt and pepper. Taste and add more salt, olive oil and/or lemon juice as needed. This mixture should be highly seasoned.
05Spread labneh or yogurt on a large platter. Spoon onion mixture over surface. Drizzle with additional oil, and tear mint and parsley leaves and scatter over top. Sprinkle with sumac. Serve with grilled pita.