Clean and devein prawns. Use a dry towel to absorb all the water from the prawns. In a bowl combine and mix sugar, salt, vinegar, white pepper, wine and egg. Add prawns and marinate for about 10 to 15 minutes.<P>Remove prawns to a clean bowl and batter them with cornstarch. Heat oil in a wok and deep fry the prawns until light brown. Remove prawns to a clean bowl and toss with condensed milk and mayonnaise mix. Place prawns on a platter and top with sesame seeds. Surround the prawns with honey walnuts and garnish with a fresh flower, orange slice and parsley.<P> Serves 4 as part of a full-course meal.