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Japanese Sweet Potatoes and BBQ Chicken

This meal has been on repeat in our house over the last couple weeks. It’s so easy to make, with only four ingredients!

Just marinate boneless skinless chicken thighs or breasts in Japanese barbecue sauce or teriyaki for a few hours. When it’s time to eat, toss some diced Japanese sweet potato in olive oil to roast in the oven. Then either air fry or bake the marinated chicken to serve alongside the roasted sweet potatoes with steamed rice and pickled veggies.

sliced Japanese bbq chicken thigh in a bowl with steamed rice, roasted japanese sweet potatoes, pickled cabbage and carrots, green onion, and toasted sesame seeds

Any high protein meal that my picky eater makes a happy plate with it a huge winner, and this combo ticks that box. Minus the pickled carrots and cabbage, of course.

The Japanese Barbecue Marinade for Chicken + Alternatives

If you’ve spent any time on the food side of social media, you’re probably aware of Bachan’s Japanese barbecue sauce. I’ve been using it for years and absolutely love the stuff.

It’s perfect for marinating proteins, making stir fries, as a dipping sauce, or even making quick caramelized rotisserie chicken for a topping on high protein ramen.

two chicken breasts marinating in Bachan's Japanese barbecue sauce

I’ve made a copycat version before using all the ingredients on their label. And while my version is solid, it sure is a lot easier to buy a bottle of their sauce. Bachan’s also makes lots of flavors like roasted garlic, miso, and hot honey now.

If you have a go-to teriyaki sauce or another Asian-style chicken marinade, they will work for this recipe. The world is your oyster sauce.

I would recommend matching the salt and sugar levels if possible. One tablespoon of Bachan’s Original sauce has 520mg of sodium and 8g of sugar, for comparison.

Air Frying Chicken Breasts or Chicken Thighs

I’ve tested both breasts and thighs with this marinade, and the cook times are very similar. In a Ninja air fryer pro, 375ºF for about 15 minutes does the trick. The recipe calls for brushing on an extra tablespoon of sauce in the final minute or two so it gets nice and sticky caramelized.

side by side photos, one with air fried chicken breasts, and the other with air fried chicken thighs

Chicken thighs are such beauties because it’s so difficult to overcook them. They also have more flavor due to the high fat content. I typically take thighs to an internal temperature of 175ºF and think they get even better at higher internal temps.

Chicken breasts, on the other hand, become dry and rubbery beyond the 165ºF internal temperature threshold. I recommend keeping a watchful eye on chicken breasts with a food thermometer for best results. They’re finicky, but I know some people prefer chicken breasts over thighs.

I find myself becoming more of a chicken breast enthusiast. This recipe is number five in a recent air fried chicken breast series where I’ve surprised myself with how delicious they can be. My wife (picky eater) says the chicken breast and brothy rice is her favorite thing I’ve made in years.

Either way you go with this recipe, I think you’ll be pleased.

Serving

Sure, you can serve chicken and sweet potatoes on their own or with a little greens or seaweed salad. But I think this combo is best served in rice bowls with some type of pickled or fermented veggies. Bonus points for lite yum yum sauce.

I cheat and buy pre-made pickled carrots and cabbage from Whole Foods, but you can make your own or make other Japanese side dishes like sunomono (cucumber salad), green beans, or carrot salad.

Let me know in the comments if you have any suggestions for pairings, questions about the recipe or cooking methods, or anything else. I hope you love these Japanese sweet potato and chicken bowls as much as we do around our house. Recipe reviews are always appreciated if you do!

sliced air fried chicken thigh in a bowl with steamed rice, roasted japanese sweet potatoes, pickled cabbage and carrots, and toasted sesame seeds

Japanese BBQ Chicken and Sweet Potato Bowls

Roasted Japanese sweet potatoes with barbecue marinated chicken served with rice and pickled and veggies.
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Prep Time: 15 minutes
Cook Time: 45 minutes
Marinade Time: 2 hours
Total Time: 3 hours
Servings: 4 servings
Calories: 410kcal
Author: Mason Woodruff

Ingredients

  • 1 pound Boneless Skinless Chicken Thighs or Breasts see notes
  • ¼ cup (76g) Bachan's Japanese Barbecue Sauce or teriyaki sauce
  • 2 pounds Japanese Sweet Potatoes or your choice of sweet potatoes
  • 2 Tablespoons (32g) Olive Oil
  • 1-2 pinches Kosher Salt

For Serving

  • Steamed Rice
  • Sliced Green Onion
  • Toasted Sesame Seeds
  • Pickled or Fermented Veggies

Instructions

  • Marinate the chicken. Mix the chicken thighs and 3 tablespoons (57g) of the Japanese barbecue sauce together. Cover and refrigerate for at least 2 hours. Reserve the remaining tablespoon for glazing when cooking.
  • Roast the potatoes. Preheat your oven to 425ºF. Line a half sheet pan with parchment paper and add the diced potatoes. Toss with the olive oil and bake for 35-40 minutes on the bottom rack of your oven. Season the roasted potatoes with kosher salt straight out of the oven.
  • Air fry the chicken. After the potatoes have been in the oven for 15 minutes, add the marinated chicken to an air fryer basket. Cook for 12-15 minutes at 375ºF until the chicken reaches an internal temperature of 160ºF. Brush on the remaining 1 tablespoon of Japanese barbecue sauce and cook another 1-2 minutes until sticky and caramelized. Let the chicken rest for 5 minutes before slicing.
  • Serve the roasted potatoes and chicken with steamed rice, pickled veggies, sliced green onion, and toasted sesame seeds.

Notes

Be sure to check chicken breast with a food thermometer early and often to avoid overcooking. You don’t want to take it beyond 165ºF internally. I like to take chicken thighs closer to 170ºF to 175ºF before brushing with extra sauce and finishing. 
If you’re baking the chicken instead of air frying, add the chicken to a separate sheet pan and bake on the middle rack in the final 15-20 minutes of the sweet potatoes’ cook time. 

Nutrition Facts Notes

  • 1 serving = 1/2 a chicken breast + 1/4th of the sweet potatoes (no rice or garnishes)
  • With chicken thighs, each serving has 420 calories, 24g protein, 55g carbs, 11g fat, and 8g fiber. 
  • I recommend adding 1/2 cup steamed jasmine rice to each serving. 

Nutrition

Serving: 1serving | Calories: 410kcal | Carbohydrates: 55g | Protein: 30g | Fat: 8g | Fiber: 8g
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