While ketchup may seem a surprising ingredient in Chinese food, it really is used in this dish and produces a very tasty and quite lovely sauce for stir-fried shrimp. Here's Mama Liu's recipe for Chinese Shrimp in Tomato Sauce (Ketchup Shrimp) 茄汁大虾 6park.comIngredients - 12 shrimps (prawn) - 1tbsp chopped scallion - 1tbsp minced garlic - 1tsp minced ginger - ½ cup chopped onion - 4 tbsp ketchup 6park.comDirections - Clean shrimp, marinate with 1tbsp cooking wine about 15 minutes. - Chop scallion/garlic/ginger/onion. - Make sauce with 4tbsp ketchup/1tbsp sugar/1/4 tsp salt/1/2 cup water, mix well. - Add 2tbsp cooking oil in cooking pan at medium heat, add shrimps , each side fry about 30 seconds, do not overcook, take out in the plate. - Add scallion/garlic/ginger/onion in, stir fry about 1 or 2 minutes at medium low heat, then add sauce in, stir other 1 or 2 minutes at medium heat, and add shrimps, cook for about 1 or 2 minutes on high heat, stir quickly at last minute. Place in the plate, ready for serving.