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In a medium measuring cup or bowl, combine the soy sauce, mirin, and granulated sugar.

Whisk the mixture thoroughly until the sugar is completely dissolved and all ingredients are well combined.

Transfer the liquid mixture into a small saucepan. Place the saucepan on the stove over medium-low heat. Bring to a gentle simmer and cook for 8 to 10 minutes, stirring occasionally. Continue to simmer until the sauce has reduced slightly and thickened enough to coat the back of a spoon.

Remove the saucepan from the heat and allow the teriyaki sauce to cool completely to room temperature. This will take at least 30 minutes.

Once the sauce has cooled, if desired, stir in the optional chili flakes for a spicy kick and the sesame oil for an umami boost.

To marinate chicken, place the 1-inch cubed chicken pieces into a resealable plastic bag or a shallow bowl. Pour the cooled teriyaki sauce over the chicken, ensuring all pieces are fully coated. Seal the bag or cover the bowl and refrigerate to marinate for at least 30 minutes, or up to 4 hours for best flavor.

To cook the marinated chicken, heat 1 tablespoon of vegetable oil in a large skillet over medium-high heat. Add the marinated chicken pieces and cook for 5 to 7 minutes, turning occasionally, until the chicken is cooked through and lightly caramelized. Alternatively, grill or bake the chicken until an internal temperature of 165°F (74°C) is reached.

Serve the cooked teriyaki chicken immediately with steamed rice or your favorite side dishes.


In a medium measuring cup or bowl, combine the soy sauce, mirin, and granulated sugar.

Whisk the mixture thoroughly until the sugar is completely dissolved and all ingredients are well combined.

Transfer the liquid mixture into a small saucepan. Place the saucepan on the stove over medium-low heat. Bring to a gentle simmer and cook for 8 to 10 minutes, stirring occasionally. Continue to simmer until the sauce has reduced slightly and thickened enough to coat the back of a spoon.

Remove the saucepan from the heat and allow the teriyaki sauce to cool completely to room temperature. This will take at least 30 minutes.

Once the sauce has cooled, if desired, stir in the optional chili flakes for a spicy kick and the sesame oil for an umami boost.

To marinate chicken, place the 1-inch cubed chicken pieces into a resealable plastic bag or a shallow bowl. Pour the cooled teriyaki sauce over the chicken, ensuring all pieces are fully coated. Seal the bag or cover the bowl and refrigerate to marinate for at least 30 minutes, or up to 4 hours for best flavor.

To cook the marinated chicken, heat 1 tablespoon of vegetable oil in a large skillet over medium-high heat. Add the marinated chicken pieces and cook for 5 to 7 minutes, turning occasionally, until the chicken is cooked through and lightly caramelized. Alternatively, grill or bake the chicken until an internal temperature of 165°F (74°C) is reached.

Serve the cooked teriyaki chicken immediately with steamed rice or your favorite side dishes.
