Pierce the eggplants a few times with a fork. Grill over an open flame, turning often, until the skin is charred and the inside is soft. You can also broil them in the oven.
Let the eggplants cool, then peel off the charred skin. Keep the stem and flesh intact.
Flatten each eggplant with a fork.
Beat the eggs with the fish sauce, scallion, chilies, salt, and pepper.
Dip each eggplant in the egg mixture, coating it well.
Heat oil in a skillet over medium-high heat. Fry each eggplant until golden brown, about 1 to 2 minutes per side.
Drain on paper towels and serve warm.
Video
Notes
Eggplant: Japanese or Chinese eggplant works best because it is long, slender, and easy to flatten. Other varieties can be used, but may take longer to cook.
Fish sauce: Adds a savory, salty flavor.
Oil: Use a neutral, high-smoke-point oil, like vegetable, canola, or peanut oil.
Chilies: Optional. Add sliced fresh chilies to the eggs if you like a little heat.