Teriyaki chicken in foil is a simple oven-baked meal of chicken, vegetables, and savory-sweet teriyaki sauce cooked together in sealed packets. The foil keeps the chicken moist and makes cleanup easy; serve the packets over rice for a complete dinner. This is a practical home-style recipe rather than a single traditional Japanese preparation.
Ingredients
- 1½ lb (680 g) boneless, skinless chicken breasts, cut into 1-inch (2.5 cm) pieces
- ½ cup (120 ml) teriyaki sauce, divided; use a gluten-free version if needed
- 1 tablespoon (15 ml) neutral cooking oil, such as canola
- 1 medium red bell pepper, about 6 oz (170 g), thinly sliced
- 1 medium zucchini, about 8 oz (225 g), cut into half-moons ¼ inch (6 mm) thick
- 1 small yellow onion, about 4 oz (115 g), thinly sliced
- 2 teaspoons (6 g) cornstarch
- 1 tablespoon (15 ml) cold water
- 2 teaspoons (6 g) sesame seeds
- 2 thinly sliced green onions, about ¼ cup (25 g)
- 4 cups (600 g) cooked rice, for serving
Instructions
- Heat the oven to 400°F (200°C). Tear four sheets of heavy-duty foil, each about 12 by 18 inches (30 by 45 cm). If using regular foil, use two sheets per packet to reduce the chance of leaks. Set the sheets on a rimmed baking sheet for easier handling.
- In a bowl, toss the chicken with the oil and 2 tablespoons (30 ml) of the teriyaki sauce. Keep the remaining sauce separate; sauce that has touched raw chicken should not be used as a finishing sauce unless it is boiled as directed below.
- Divide the bell pepper, zucchini, and onion among the foil sheets, arranging the vegetables in the center. Divide the chicken evenly over the vegetables. Drizzle 1 tablespoon (15 ml) of the reserved teriyaki sauce over each portion.
- Bring the long sides of each foil sheet together and fold them down tightly over the food. Fold the short ends inward to seal, leaving a little room inside each packet for steam to circulate. Do not wrap the packets so tightly that the foil presses against the chicken.
- Place the packets seam-side up on the baking sheet and bake for 20 minutes. Carefully open one packet away from your face to release steam. Check the largest chicken piece with a food thermometer; poultry must reach the USDA FSIS safe minimum internal temperature of 165°F (74°C). If needed, reseal and bake in 3-minute increments, checking again. The exact time depends on piece size and oven performance.
- While the packets bake, put the remaining ¼ cup (60 ml) teriyaki sauce in a small saucepan. Stir the cornstarch with the cold water until smooth, then whisk it into the sauce. Bring to a gentle boil over medium heat, stirring, and simmer for 1 minute until glossy and thickened. This uses sauce that has not touched raw chicken.
- Let the packets stand unopened for 3 minutes, then open carefully to avoid the hot steam. Spoon the thickened sauce over the chicken and vegetables. Sprinkle with sesame seeds and green onions, and serve over cooked rice.
Tips
- Cut the chicken into pieces of similar size so they cook evenly. Avoid very large chunks, which can take longer to reach a safe temperature while the vegetables become too soft.
- For extra tender chicken, use boneless, skinless thighs in place of the breasts; cut them to a similar size and check each packet for 165°F (74°C). Thighs may need a few extra minutes.
- Teriyaki sauces vary in sweetness and saltiness. If yours is very salty, use a little less and add a splash of water to the packet; if it is mild, add a teaspoon (5 ml) of honey to the finishing sauce.
- Do not rely on color or clear juices to judge doneness. Open a packet cautiously and measure the center of several of the largest chicken pieces with a clean instant-read thermometer.
Serving Suggestions
Serve each packet over warm rice, spooning the juices from the foil onto the bowl. Steamed brown rice, white rice, or rice noodles all work well. For a fuller meal, add edamame, a cucumber salad, or steamed broccoli on the side. If you are serving straight from the packets, transfer them to plates first or place each packet in a shallow bowl to catch the sauce, and remind diners that the foil and trapped steam are hot.
Variations
Swap the bell pepper and zucchini for broccoli florets, snap peas, sliced mushrooms, or thinly sliced carrots. Keep pieces small and evenly cut so they cook in about the same time as the chicken; dense vegetables such as carrots may need to be sliced very thinly. For a little heat, add ¼ teaspoon (1 g) red pepper flakes or a teaspoon (5 ml) of grated fresh ginger to the chicken. To make the meal gluten-free, check that both the teriyaki sauce and cornstarch are labeled gluten-free; ordinary soy sauce often contains wheat, while tamari or a suitable gluten-free sauce can replace it. The flavor may be slightly different depending on the sauce used.
Storage and Reheating
Refrigerate leftovers within 2 hours of cooking, transferring the chicken and vegetables from the foil into a covered container. Keep refrigerated at 40°F (4°C) or below and use within 3–4 days. For longer storage, freeze in a sealed freezer-safe container for up to 2 months for best quality; thaw overnight in the refrigerator. Reheat only the portion you plan to eat, covered in a microwave-safe dish or in a saucepan with a splash of water, until it reaches 165°F (74°C). Do not reheat food in foil in a microwave.
Frequently Asked Questions
Can I make the foil packets ahead?
Yes. Assemble them, refrigerate promptly, and bake within 24 hours. Keep the raw chicken packets at 40°F (4°C) or below, and place them on a rimmed baking sheet before baking. The oven time may increase slightly if they go into the oven cold; use a thermometer rather than relying on the clock.
Can I cook these packets on a grill?
Yes. Heat a covered grill to medium, around 375–400°F (190–200°C), and place the sealed packets on the grate. Cook for about 18–25 minutes, turning once if your grill has hot spots. Grill timing varies, so check the chicken reaches 165°F (74°C) before serving.
Can I use frozen chicken?
Thaw the chicken completely in the refrigerator before cutting and assembling the packets. Do not assemble packets with frozen chicken: it can cook unevenly, and the vegetables may overcook before the center of the chicken is safe.
Why is there liquid in the bottom of the packet?
Chicken and vegetables release moisture as they cook, and the sealed packet traps it. This is expected. Spoon the juices over rice, or carefully pour them into the thickened teriyaki sauce. Avoid opening packets toward your face because hot steam escapes quickly.
Can I use bottled teriyaki sauce without thickening it?
Yes. You can drizzle the reserved sauce over the finished packets as-is, provided it has not touched raw chicken. The cornstarch step makes a thicker glaze that clings to the food; skip it if your sauce is already thick enough.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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