You can choose to cook this on the grill, oven or pan/skillet.
If you're using a pan or skillet, over a medium-high heat, heat 1 tablespoon of oil to coat the pan. Once the pan is hot, add the chicken thighs and sear for 4-5 mins on each side. Try not to flip the chicken too often to allow it to have a good sear! Check that your chicken is cooked through properly and turn down the heat to cook chicken for a little longer if necessary.
If you're using the oven, lay out the chicken thighs evenly across a wide baking tray. Try to minimise stacking the chicken thighs on top of each other, to allow then to properly cook and char at the top.
If you're having a barbecue or grill, allow for the chicken thighs to char on each side and cook through properly.
Once chicken is cooked, using a large chopping board, slices into strips as preferred.