Homemade Cantonese Fried Chicken | 炸子雞 with Chilli Pineapple Sauce

Ingredients:
1.4kg Whole chicken
50-65g Coarse sea salt
Seasoning:
1/2tbsp Onion powder
1/2tbsp Garlic granules
1tsp Sand Ginger powder
1/4tsp Chinese 5 spice powder
1/8tsp White pepper powder
1tsp Chicken powder
1tsp Salt
Bathing Liquid:
1.5litres Water
70ml Chinese Red vinegar
3tbsp Maltose
Chilli Pineapple Sauce:
6g Sliced garlic
4g Sliced ginger
75g Pineapple pieces
55g Red chillies
1/4tsp Salt
1/2tsp Chicken powder
1tbsp Golden castor sugar
2tbsp Plum sauce
25ml Water