Taiwanese night market chicken recipe

Ingredients

• 800 g boneless chicken breast
• 1 tbsp coarse salt flakes
• 30 g ginger, peeled
• 6 garlic cloves, peeled
• 4 tsp soy sauce
• 4 tsp rice wine
• 1 tsp granulated sugar
• 1.5 tsp white pepper, finely ground
• 1 tsp five-spice powder
• 1.5 tsp Tianjin chilli powder
• 100 g sweet potato flour coating mix (see below)
• 3 tbsp iced water
• 120 g sweet potato flour
• 750 ml cooking oil, for frying
• 60 g holy basil leaves