Combine seasoning sauce ingredients in bowl. Stir to dissolve cornstarch. Devein shrimp without shelling--or buy them that way Heat wok over high heat till hot. Add 2 1/2 T oil and heat till hot, but not smoking. Add shrimp and stir fry about 5 min till almost cooked. Remove Heat pan over high heat, add 2t oil, and stir fry onions, ginger, garlic, 30 sec. Stir seasoning sauce, and add to wok. Stir till slightly thickened. Add shrimp, and stir till evenly coated. Turn off heat and add sesame oil and swirl. Serve NOTE--serve with rice, Smoked Bean Sprouts. Messy, hot and wonderful!