For the chermoula: Heat a small skillet over medium heat. Add the cumin and coriander seeds and toast until fragrant, stirring frequently, about 1 minute. Transfer to a mortar or spice grinder, and grind coarsely. Transfer the seeds to a small bowl. Add the paprika and cayenne, and then mix in the oil, lemon juice, shallot, and cilantro. Season to taste with salt and pepper.