Iconic Mexican dish: roasted poblano chiles stuffed with cheese or picadillo, dipped in a fluffy egg batter and pan-fried, served in a light tomato broth.
Chile relleno is one of Mexico's most celebrated dishes: a large poblano chile, roasted and peeled until silky, stuffed with cheese or a savory meat filling, then dipped in a cloud of beaten egg whites folded with yolks to create a puffy, golden batter that forms a delicate, soufflé-like shell around the chile. The finished dish — served in a fragrant tomato-chipotle broth called caldillo — is one of the great examples of Mexican technique and flavor, requiring attention at multiple stages and combining textures that range from the slightly smoky, tender chile to the crisp, egg-battered exterior to the molten cheese within. The dish originates in the colonial period of Puebla and Oaxaca, where nuns in convents developed elaborate preparations for poblano chiles — the large, mildly hot pepper named after the state of Puebla. The classic stuffing is queso Oaxaqueño (a stringy, mild white cheese similar to mozzarella) for the 'queso' version, or a picadillo — a savory mixture of ground pork or beef with tomatoes, onions, garlic, cumin, raisins and almonds — for the 'picadillo' version. The egg batter (capeado) is the technical heart of the dish: egg whites must be beaten to stiff peaks, then yolks folded in gently. Too much folding deflates the whites and produces a dense batter; too little folding leaves streaks of yellow that cook unevenly. The caldillo de tomate — a light broth of blended tomatoes, onion, garlic, and chipotle simmered in chicken broth — provides the braising liquid and sauce. Chiles rellenos are frequently served at Mexican celebrations and are found throughout the country in regional variations.
Serves 4
Place the poblano chiles directly over a gas flame on high heat or under a broiler, turning with tongs every 2–3 minutes until the skin is completely blackened and blistered on all sides — this takes 8–12 minutes. Place in a plastic bag or covered bowl for 10 minutes to steam.
Completely charred skin is essential — any green spots left mean the skin won't peel cleanly, leaving tough, chewy patches.
Remove the chiles from the bag and rub off the charred skin under a thin stream of cold water or with a paper towel (avoid rinsing under strong water flow — this washes away flavor). Make a slit along one side of each chile from stem to tip, being careful not to tear through. Remove the seeds and veins gently using a small spoon, leaving the stem intact. Pat dry inside and out.
Fill each peeled, seeded chile with the cheese sticks or picadillo, pressing the edges of the slit together to enclose the filling. Secure with toothpicks if needed. Dust the stuffed chiles lightly with flour, shaking off excess — this helps the egg batter adhere.
Blend the roasted tomatoes, onion, garlic and chipotle until smooth. Heat 1 tbsp oil in a saucepan over medium-high heat. Pour in the tomato purée and fry, stirring, for 5 minutes until darkened and fragrant. Add chicken broth and salt; simmer 15 minutes. Keep warm.
Beat egg whites with an electric mixer with a pinch of salt until stiff peaks form — the whites should hold a firm peak when the beater is lifted. In a separate bowl, lightly beat the yolks. Fold yolks into the whites using a spatula with 3–4 large, gentle strokes. Streaks of yellow are fine — do not over-fold.
This batter works best if the egg whites are at room temperature and your bowl is completely grease-free. A single drop of egg yolk in the whites will prevent them from reaching stiff peaks.
Heat 2 cm of oil in a heavy skillet over medium heat to 175°C. Working quickly, dip each stuffed chile in the egg batter, coating all sides. Carefully lower into the hot oil and fry 2–3 minutes per side until golden and puffed. Fry two at a time to avoid crowding. Drain on paper towels.
Place the fried chiles rellenos in wide shallow bowls. Ladle the warm caldillo broth around (not over) the chiles to preserve the crisp batter. Serve immediately with white rice and warm corn tortillas.
The poblano skin must be completely charred black — not just lightly blistered. Incomplete charring means the skin won't peel off cleanly, leaving tough, chewy patches over the silky chile flesh.
Serve chiles rellenos the moment they come out of the oil — the egg batter deflates within minutes. Have the broth ready and plates warm before you begin frying.
For a leaner version, the stuffed chiles can be baked at 200°C after lightly brushing with oil, but the batter will not puff the same way — the texture will be more like an omelet coating than a soufflé shell.
Chile relleno de picadillo: replace the cheese with picadillo — a mixture of ground pork, raisins, almonds, tomatoes and spices. The combination of sweet and savory filling with the smoky chile is the Pueblan restaurant classic.
Chiles en nogada: the festive September version — chiles rellenos stuffed with pork picadillo with fruit, draped in a cold walnut cream sauce (nogada) and decorated with pomegranate seeds and parsley. The colors (green, white, red) represent the Mexican flag.
Chiles rellenos are best eaten immediately after frying. The egg batter deflates and becomes soggy within 30 minutes. You can prepare the roasted, peeled and stuffed chiles up to 24 hours ahead and refrigerate; make the batter and fry just before serving. Caldillo keeps refrigerated up to 5 days.
Chile relleno appears in Mexican cookbooks from the 18th century, though stuffed chile preparations appear in pre-Columbian Aztec cuisine. The signature egg batter (capeado) technique is a colonial-era development, likely introduced by Spanish nuns in Puebla who applied European fritter techniques to the local poblano chile. By the 19th century, chiles rellenos de queso and de picadillo appeared regularly in Mexican recipe collections and were firmly associated with Puebla's culinary identity.
Large Anaheim chiles are the closest widely available substitute — they are milder than poblanos (minimal heat) but have a similar size and enough flesh to stuff and roast. Banana peppers work in a pinch but are much thinner and don't hold the stuffing as well.
Three common causes: the stuffed chile was not dried well before flouring (moisture prevents the batter from sticking), the oil was not hot enough (batter slides off in cool oil), or the batter was over-folded and lost its body. Make sure the chile is thoroughly dry, the oil is at 175°C, and the whites are folded just until barely combined with the yolks.
Absolutely — the cheese version is already vegetarian if you use vegetable broth for the caldillo. Queso Oaxaqueño or good-quality mozzarella are the traditional choices. For a vegan version, marinated and pressed firm tofu stuffed with sautéed mushrooms and herbs is an interesting substitute, though the flavor profile changes significantly.
Per serving (380g / 13.4 oz) · 4 servings total
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