Chicken Tangsuyuk - Korean Sweet and Sour Sauce

Ingredients

• 500 gr chicken thighs and breasts
• 1/2 tsp salt
• 1/2 tsp black pepper
• 2 cup potato starch
• 500 ml water
• Oil for frying
• 1 carrot
• 1 onion
• 2-3 tbsp vinegar/lemon juice
• 1 tbsp soy sauce
• 3 tbsp sugar
• 1 tbsp cornstarch
• 1 tbsp oil
• Water