Cut a shallow "X" in stem end of each sprout. Cook sprouts in boiling water 7 minutes or until tender; drain.
Heat the oil in a large skillet over medium heat. Add chiles; cook 1 minute or until browned, shaking the pan frequently. Add seeds; cook, partially covered, 1 minute or until mustard seeds begin to pop, shaking pan frequently. Add onion and turmeric; sauté 5 minutes or until lightly browned. Add sprouts, salt, and sugar; cook 3 minutes or until thoroughly heated. Stir in cilantro, coconut, and juice.