Scallion Oil Sauce

In Taipei, it is easy to find ready-cooked chicken, from the open air markets to the supermarkets. So I made this scallion oil sauce (洋蔥油) to go with the chicken I bought from a market in Taipei. This scallion oil is a nice condiment not just for chicken, but for noodles as well (洋蔥油麵).

Scallion Oil Sauce Recipe

See Also:

Taipei Market (Cooked and cut chicken)

This is the cooked chicken I was talking about. I bought it Yong Chun market (永春市場) in the evening after work. It cost me only NT$120 for one plate of chicken drumstick, which is a steal compared with the prices back home. It comes already nicely cut so it’s super convenient. I ate most of it for dinner, and by the time I shot this scallion oil recipe the next day, I am only left with a few slices of chicken >_< (totally no self control).

Scallions (Green Onions)
The spring onions in Taiwan are labelled as scallions (青蔥), pictured above. They are generally longer than our spring onions, with more of the bottom white portion. It is very ideal for making scallion sauce, as to me, the white portion to me is the most aromatic. But don’t worry if you can’t find the exact variety of scallions locally. I have made this sauce many times back home, using our local spring onions with good results.

Scallion Oil Sauce Recipe

Scallion Oil Sauce Recipe
The main ingredient in this recipe is scallions (of course). I separate the whites from the green, chopped.

Scallion Oil Sauce Recipe
I also use grated ginger.

Scallion Oil Sauce Recipe

I briefly saute the bottom white scallions first to bring out the scallion aroma (pictured above). Then I add sesame oil and grated ginger, and cook for 30 seconds more. Taking the pan off the heat, I add in the rest of the scallions and seasonings, while the oil is still sizzling. It is really easy.

Scallion Oil Sauce Recipe
This sauce is great as a condiment for most dishes, but I use it mainly for accompanying steamed chicken or dressing plain noodles. I personally like my scallion oil slightly over-salted for it to go well with any dishes I am eating it with.

Scallion Oil Sauce Recipe

For best results, this scallion oil should be slightly over-salted for it to go well with the dishes you are topping it with.


  • 60 ml peanut oil (or use healthier olive oil)
  • 20 grams chopped scallions (bottom white portion)
  • 20 grams grated ginger
  • 20 grams chopped scallions (green portion)
  • 1 tbsp sesame oil
  • 1/8 tsp sugar only if needed; to taste
  • 1/8 tsp sea salt to taste
  • 1/8 tsp chicken or mushroom seasoning powder to taste; if not using, add more salt to taste


Heat oil in wok on low heat, then add chopped scallions (white portion). Cook briefly until aromatic, without browning the scallion. Add sesame oil and grated ginger and sizzle for 30 seconds more. Take the pan off the heat and add remaining chopped scallions (green portion) immediately. Season to taste with sugar, salt and chicken/mushroom seasoning powder. Keeps covered in the fridge for 2 weeks. To use, let the sauce thaw at room temperature or in a hot water bath.