Cold Chicken with Ginger and Spring Onion

Name: Cold Chicken with Ginger and Spring Onion (You Lin Ji 油淋雞)
Cuisine: Chinese
Ingredients: 2 cold, cooked boneless chicken thighs (about 250 g in total); 3 tbsp light or tamari soy sauce mixed with 1 tbsp water; 2 spring onions, finely sliced; 3½ tbsp cooking oil; 2 tbsp finely chopped ginger