A whole chicken marinated in lemongrass, garlic, fish sauce, and honey, then roasted until the skin turns deeply caramelized and fragrant.
Ga nuong sa takes the classic Vietnamese lemongrass marinade -- built on fish sauce, garlic, chile, and fresh lemongrass -- and applies it to a whole roast chicken instead of the more common grilled skewers or wings. The result is a bird with deeply savory, caramelized skin and meat that's infused with citrusy, herbal lemongrass all the way through, thanks to a marinade that's rubbed both over and under the skin. The technique that makes this work is time and contact: the chicken needs at least 4 hours, ideally overnight, for the fish sauce and lemongrass paste to properly season the meat rather than just coat the surface. A touch of honey or sugar in the marinade helps the skin caramelize to a deep mahogany color in the oven, similar to the char you'd get from a charcoal grill, while a foil tent partway through roasting keeps the breast meat from drying out before the thighs finish cooking. Served with a side of rice, pickled vegetables, and extra nuoc cham for dipping, ga nuong sa turns an everyday roast chicken into something distinctly Vietnamese -- a family Sunday dinner mainstay in many households.
Serves 4
Combine lemongrass, garlic, fish sauce, honey, soy sauce, oil, pepper, shallot, and chile into a thick paste.
Pat chicken dry and loosen the skin over the breast and thighs with your fingers. Rub half the paste under the skin and the rest all over the outside and cavity.
Refrigerate uncovered at least 4 hours, ideally overnight, so the marinade penetrates and the skin dries slightly for better crisping.
Preheat oven to 200C/400F. Place chicken breast-side up on a rack over a roasting pan. Roast 20 minutes, then tent loosely with foil and continue roasting 45-55 minutes.
Remove foil for the last 10 minutes to deepen the color. Chicken is done when a thermometer in the thickest part of the thigh reads 74C/165F.
Rest 10 minutes before carving. Serve with rice and pan juices spooned over.
Rubbing marinade under the skin, not just on top, is what gets the lemongrass flavor into the meat rather than just the surface.
Let the chicken sit uncovered in the fridge overnight -- the dry skin surface crisps far better than one that goes straight from a wet marinade into the oven.
Use a meat thermometer rather than guessing; overcooked breast meat is the most common mistake with whole roast chicken.
Spatchcock the chicken before marinating to cut roasting time to about 45 minutes and get more even browning.
Grill the chicken in pieces over charcoal instead of roasting whole for a smokier, more traditional result.
Add a tablespoon of curry powder to the marinade for a golden, Vietnamese-Indian-influenced variation.
Refrigerate leftover chicken up to 3 days in an airtight container. Reheat in a 180C/350F oven for 10-15 minutes to keep the skin from going soggy; avoid microwaving if possible.
Lemongrass and fish sauce marinades are foundational to Vietnamese grilled and roasted meats, most famously in dishes like ga nuong and thit nuong, reflecting the cuisine's reliance on fresh aromatics rather than heavy spice blends.
Yes -- bone-in thighs and drumsticks work well and cook faster, about 35-40 minutes at 200C/400F.
The skin was likely too wet going into the oven. Pat it dry after marinating and let it air-dry uncovered in the fridge for at least a few hours before roasting.
Frozen minced lemongrass or lemongrass paste from a jar works well -- use about 1.5 tablespoons paste per stalk called for in the recipe.
Per serving (380g / 13.4 oz) · 4 servings total
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