Turmeric lime chicken skewers

Name: Turmeric lime chicken skewers
Prep time: 20 min
Cook time: 1 h 30 min
Total time: 1 h 30 min
Yield: 4 portions
Ingredients: 1 stalk lemongrass; 6 cm piece fresh turmeric; 1 tsp salt; 1 tbsp white sugar; 4 garlic cloves; 1 tbsp fish sauce; ½ tsp ground black pepper; ½ tsp Chinese five spice powder; 4 makrut lime leaves; 1 eschalot; 1 tsp dried chilli flakes; 1 tsp sesame oil; 20 g vegetable oil; 800 g chicken thigh fillet