Cooking a scrumptious dish with crayfish wasn't an easy matter. Even for Mag who was a rare genius, he was still tortured to the brink of death in the test field for the God of Cookery. He had only mastered the dishes after many trials. Giving a group of demons a three-day-long accelerated class to teach them how to make crayfish wasn't an easy task.
Hence, after Mag gathered 10 members of the accelerated class at the very last minute, he split them into three small groups of 3-3-4. Each group would learn one crayfish's flavor, and it wouldn't be the complete version. Instead, they would be learning about the simplified and accelerated version.
Of course, the simplified version was simplified very technically. The spices that were hard to find on the Demon Islands were removed and replaced by some locally produced spices. The cooking methods were then simplified to make the cooking easier while not affecting the crayfish's taste and texture.
