Sweet and Sour Prawn Stir-fry - Wing Yip

Ingredients

• 12-15 medium tiger prawns
• 1 jar Wing Yip Sweet & Sour Sauce (185ml)
• 1 medium white onion (sliced)
• 1 tsp chopped garlic
• 1 tsp grated ginger
• 100g small tin water chestnuts (diced)
• 1/4 pineapple, or 250g small tin pineapple rings (sliced)
• 1/2 red pepper (sliced)
• 3 spring onions (cut into 3cm lengths)
• 1 tbsp cornflour (for dusting)
• 500ml vegetable oil
• 2-3 tbsp water
• 1 tsp Wing Yip Sesame Oil