In much of Vietnam, the correct way to cook any meat is grilled over hot coals, or these days, gas. I completely agree with this: if you can be bothered to turn on the bbq, you should do so. If you have a tabletop grill, these also produce excellent results (and is how we eat it when we have dinner with my parents on their deck).
But, I’ve also tried frying it literally every way: in cast iron, in stainless steel, in nonstick, and in a wok, and I can confidently say some of the easiest and best results come surprisingly from nonstick. The charring you see in these photos come from a nonstick–except the one below, which is cast iron.
Mortar and Pestle
If you have the equipment and willingness, a mortar and pestle goes a long way towards authenticity, both to the Vietnamese-ness of this recipe and to the countryside-ness of it too. Chopping doesn’t release the flavors and juices the way a good crushing in a mortar and pestle does. It’s completely optional, and you can just chop away, but to me, the mortar and pestle makes all the difference.