Silken Tofu with Avocado

Name: Silken Tofu with Avocado (E’li Dou Fu 鱷梨豆腐)
Cuisine: Thai
Ingredients: 2 tbsp light or tamari soy sauce diluted with 1 tbsp water; A hint of wasabi paste (optional); 200 g silken tofu; ½ tsp sesame oil; ½ perfectly ripe avocado, sliced