Chiles rellenos are roasted poblano peppers stuffed with melted Oaxaca cheese, coated in a fluffy egg batter, and fried until golden brown, then served nestled in a smooth guajillo chile sauce. The combination of crispy exterior, creamy cheese filling, and zesty sauce makes this a labor-intensive but deeply rewarding Mexican classic.
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To make the guajillo chile sauce, add guajillo chiles to a saucepan and cover with water.
Boil chiles until soft, about 10 minutes.
Add boiled guajillo chiles, tomatoes, garlic, onion, 1 teaspoon salt, and ½ cup of the water used for boiling to a blender.
Blend until smooth, then set the sauce aside.
Heat the broiler to high and arrange a rack 5 inches beneath the broiler.
Slice a small T-shaped slit in each poblano pepper and remove as many seeds and ribs as possible.
Place the peppers on a foil-lined sheet tray.
Broil for 4-5 minutes, then flip and broil again for 4-5 more minutes until slightly charred.
Transfer the peppers to a bowl and cover tightly with plastic wrap to steam.
After 5 minutes, remove the plastic and scrape away as much of the skin as possible.
Add oil to a deep cast iron skillet over medium heat.
While the oil is heating up, make the batter. In a large bowl, whip the egg whites until light and fluffy.
While whipping, add the yolks one at a time, incorporating until smooth.
Combine the flour and 1 teaspoon salt in a shallow bowl.
Stuff the poblano peppers with cheese using the small slit made in step 6.
Seal the peppers closed using toothpicks.
Roll the peppers in the flour-salt mixture, coating completely.
Dredge the flour-coated peppers in the egg batter, coating completely.
Add the peppers to the hot oil and fry until golden brown, patching any bare spots with more batter.
Transfer the fried chiles rellenos to a paper-towel lined tray to drain.
To serve, add the guajillo sauce to a shallow bowl and nestle the fried chiles rellenos into the sauce.
Store leftover chiles rellenos and sauce separately in airtight containers in the refrigerator for up to 2 days; reheat gently in a skillet or oven to avoid sogginess. The peppers are best served fresh and crispy, same day.
cast iron skillet or deep heavy-bottomed pot · blender · broiler and sheet tray · thermometer (optional, for oil temperature)
You can prepare the guajillo sauce up to 2 days ahead and refrigerate it. However, chiles rellenos are best fried and served immediately after assembly to maintain the crispy batter and melted cheese filling.
Substitute with fresh mozzarella, quesadilla cheese, or a mild white cheese that melts easily. Avoid aged cheeses as they won't achieve the same creamy interior.
Broil each side for 4–5 minutes until the skin is slightly charred and blistered. The pepper skin should be pliable enough to peel away easily after steaming for 5 minutes under plastic wrap.
Whipping egg whites until fluffy creates a light, airy batter that puffs during frying, yielding a crispy, delicate crust. Adding yolks afterward maintains richness without deflating the whites.
Heat the oil over medium heat until it's hot enough to fry the peppers golden brown. The recipe does not specify an exact temperature; medium heat allows the batter to cook through without burning.
