These are one of my favorite things to make, because they can be appetizers or a main course, they take very few ingredients, and they're very easy to make. It can be a little tedious to roll them out, but even that doesn't take very long. And as a bonus, people are usually very impressed both with the execution and the result.
The first time I made green onion pancakes was with a different recipe than the one I'm giving here. It didn't specify that the water for the dough should be boiling, and it didn't have the multiple roll-outs of the dough. These things make a huuuge difference! As did an old gas range and a powerful, newer one, but that was just a benefit of moving.
Now, this recipe is from Serious Eats by J. Kenji Lopez-Alt
2 cups all-purpose flour
1 cup boiling water
Up to 1/4 cup toasted sesame oil (I actually like regular sesame oil better)
2 cups thinly sliced scallion greens
2 tbsp soy sauce
2 tbsp Chinkiang or rice wine vinegar
1 tbsp finely sliced scallion greens
1/2 tsp grated fresh ginger
2 tsp sugar
1/4 cup vegetable oil
Combine all the sauce ingredients and set aside at room temperature. (The original recipe has this step much later, but I feel it's important to do this early on or the sugar won't have time to dissolve)
Place flour in bowl of food processor. With processor running, slowly drizzle in about 3/4 of boiling water. Process for 15 seconds. If dough does not come together and ride around the blade, drizzle in more water a tablespoon at a time until it just comes together. Transfer to a floured work surface and knead a few times to form a smooth ball. Transfer to a bowl, cover with a damp towel or plastic wrap, and allow to rest for 30 minutes at room temperature, or up to overnight in the fridge.
Divide dough into four even pieces and roll each into a smooth ball. Working one ball at a time, roll out into a disk roughly 8-inches in diameter on a lightly floured surface. Using a pastry brush, paint a very thin layer of sesame oil over the top of the disk. Roll disk up like a jelly roll, then twist roll into a tight spiral, tucking the end underneath. Flatten gently with your hand, then re-roll into an 8-inch disk.
Paint with another layer of sesame oil, sprinkle 1/2 cup scallions, and roll up like a jelly roll again. Twist into a spiral, flatten gently, and re-roll into a 7-inch disk. Repeat steps two and three with remaining pancakes.
Heat oil in an 8-inch nonstick or cast-iron (I use a wok) over medium-high heat until shimmering and carefully slip pancake into the hot oil. cook, shaking the pan gently until first side is an even golden brown, about 2 minutes. Carefully flip with a spatula or tongs, and continue to cook, shaking pan gently, until second side is even golden brown, about 2 minutes longer. Transfer to a paper towel-lined plate to drain. Season with salt, cut into 6 wedges. Serve immediately with sauce for dipping. Repeat with remaining 3 pancakes.
NOTE: If you don't have a food processor, just stir the flour with a wooden spoon or chopsticks in a large bowl as you add the boiling water. After it comes together, turn it out onto a floured work surface and knead for five minutes until satiny and smooth. Proceed as instructed
This chef has great insights into why these techniques are the best ones and how they improve the recipe. If you like this recipe, I would check out his other stuff. Enjoy!