Pre-heat the oven to 180 degrees whilst you prepare the grasshoppers. To do this remove the legs and wings and place in a bowl with one teaspoon of sesame oil, making sure all of the grasshoppers are coated.
Place the grasshoppers on a baking tray and dry roast for 8 minutes. Take care not to overcook as they will burn easily.
Meanwhile heat the olive oil in a wok and add in the bean sprouts, spring onions and chili powder. Cook on a high heat for three minutes before adding in the dry roasted grasshoppers and black sesame seeds.
Cook for a further thirty seconds, ensuring everything is tossed together. Garnish with the fresh chili and coriander and serve.