Serves 4 to 6 INGREDIENTS 1 large eggplant 3 tablespoons canola oil 1-inch piece fresh ginger, peeled and finely chopped 1 large red onion, finely chopped 1 teaspoon salt, or to taste 2 garlic cloves, ground to a paste in a mortar and pestle 1 tablespoon unsweetened shredded coconut (optional) 1 tablespoon ground coriander ½…