If needed, flatten the chicken thigh so it's roughly the same thickness throughout. You can use chicken breasts as well if you like but I prefer the skin on thigh as I think it's more flavorful.
Add oil to the skillet and heat on medium heat.
Once the pan is hot, add the chicken breasts to the skillet, skin side down.
Season the chicken with salt and pepper and cook for 5-7 minutes moving the chicken as little as possible. This gives the chicken a good sear.
After the first side is done cooking, flip the chicken and cook for an additional five minutes or until the chicken is fully cooked.
After the chicken is cooked, pour 1/4 of a cup of teriyaki sauce over the chicken and cook until the sauce thickens the chicken is coated (around a minute or so). Use a spoon to continuously baste the chicken as it's cooking.
Remove the chicken teriyaki from the heat and slice into strips.
I usually serve with a bed of rice or Japanese coleslaw. Enjoy!