Oil is best for making these; butter just won’t cut it. If you’ve the time to make clarified butter, it works well here. For those of us that haven’t the time to do so for a batch of waffles, feel free to use any neutral-tasting oil. I used sunflower oil, but vegetable, canola, etc. would work well too. For a bit of flavor, coconut oil is a great option.
Pandan waffles originate from Vietnam and are characterized by the use of pandan flavoring and coconut milk in the batter. The pandan flavoring results in the batter's distinctive spring green color. When cooked, the waffle browns and crisps on the outside and stays green and chewy on the inside. Unlike most waffles, pandan waffles are typically eaten plain. In Vietnam they are relatively cheap and so are popular among children. They are a popular street food made in either cast iron molds heated with charcoal or in electric waffle irons.