This is wonton in hot chilli oil and Din Tai Fung makes the best!
One teaspoon each of sesame oil and soya sauce.
For Chilli Oil, a good choice would be Lou Gan Ma chilli oil which you can buy from Amazon or any Chinese supermarket in your area.
Add two tablespoon of dark Chinese vinegar or balsamic vinegar. This is what makes this a secret sauce.
Add a handfull of chopped green onions and finely cute ginger slivers.
Brown sugar - 1 teaspoon