Place the wasabi powder into a small bowl and drizzle with the lemon juice and sake. Stir in honey, soy sauce, hoisin sauce, horseradish, ginger and green onion.
Set the EGG for direct cooking (no convEGGtor) at 450°-550°F/230°-290°C.
Season both sides of the thighs with kosher salt, black pepper and a pinch of cinnamon.
Grill the thighs for 6-8 minutes on one side, turn the thighs over and begin to baste with the wasabi honey baste. Continue to cook for another 6-8 minutes, basting with the sauce until fully cooked, minimum internal temperature of 160°F /70°C. Remove from EGG.
Sprinkle with crushed wasabi peas, toasted sesame seeds and fresh cilantro. Serve immediately.