Spicy Sweet-and-Sour Grilled Chicken
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 28 Jan 2026
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This vibrant spicy sweet-and-sour grilled chicken is a fantastic addition to any summer barbecue. The homemade glaze balances the savoury depth of soy sauce with the sharp tang of distilled vinegar and a kick of heat from fresh green chillies. By simmering the sauce until thick and glossy, you create a rich coating that caramelises beautifully over the flames, ensuring every bite of the chicken drumsticks and thighs is packed with intense flavour.
As a high-protein main dish, this recipe is as nutritious as it is satisfying. The indirect grilling method ensures the chicken remains succulent and juicy on the inside while achieving a charred, sticky exterior. Serve the grilled pieces alongside a fresh green salad or some charred corn on the cob, using the reserved sauce for dipping and plenty of lime wedges to cut through the sweetness.
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Ingredients for Spicy Sweet-and-Sour Grilled Chicken
240ml water
60ml plus 2 tablespoons tomato paste (from a 170g can)
240ml soy sauce
240ml distilled white vinegar
180ml sugar
150g minced onion (about 1 medium)
45g minced serrano or jalapeño chillies with seeds
35g minced garlic (about 9 large cloves)
6 large chicken drumsticks (about 675g)
6 large chicken thighs (about 900g ), trimmed of any excess fat and skin
Lime wedges for serving
Instant-read thermometer
How to make Spicy Sweet-and-Sour Grilled Chicken
Back to contentsStir together water and tomato paste in a 2 1/2- to 3-quart heavy saucepan until smooth, then stir in remaining sauce ingredients. Bring mixture to a boil, stirring, then reduce heat and briskly simmer, stirring occasionally, until sauce is reduced to 550ml , 50 to 60 minutes. Stir frequently toward end of cooking to prevent sticking. Reserve 240ml sauce for serving.
Prepare grill for indirect-heat grilling over medium-hot charcoal (medium-high heat for gas grills; see Grilling Procedure ).
Pat chicken dry (do not season with salt and pepper). Lightly oil grill rack and place chicken, skin side down, on area with no coals underneath (over turned-off burner if using gas). Grill, covered, turning once, until chicken registers 74°C, 22 to 25 minutes. (Chicken may appear pale; no cause for worry.)
Brush generously all over with some of sauce, then move chicken directly over coals (turned-on burners if using gas). Grill chicken, covered, turning and moving to area with no coals or heat underneath if flare-ups occur, until browned, 3 to 5 minutes more. (Add more charcoal during grilling if necessary to maintain heat.)
Serve chicken with reserved sauce.
Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Article history
The information on this page is peer reviewed by qualified clinicians.
28 Jan 2026 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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