The basic recipe for Chiles Rellenos is:
- Char the outside of some whole chile peppers and peel them
- Slit the peppers and remove the seeds
- Stuff the peppers with cheese or picadillo
- Batter and fry the peppers
- Optionally, add some sauce
In the Northern Mexico and the US, the peppers used for this are primarily poblano or Anaheim peppers, both of which are large, meaty peppers with thick walls. However, in Oaxaca, the traditional peppers are chiles de agua or pasillas de Oaxaca.
The challenge here is that the walls of the chile de agua pepper are thinner than a poblano, and when the skin is removed they become tissue-thin and lose all strength. In practice, I've found it impossible to keep the pepper in one piece, it shreds while being stuffed, falling apart.
I've been charring the peppers on the gas grill to peel them, which works fine with poblanos. My question is: do I need to char/peel chiles de agua a different way? How? Is there a way to make rellenos without peeling the peppers? Should I be doing something else different?