Add marinade ingredients to a large mixing bowl and whisk until combined well. Add chicken and turn to coat.
Cover and refrigerate overnight, or up to 48 hours.
If making yogurt sauce - In a separate smaller mixing bowl, add all yogurt sauce ingredients and whisk/stir until combined. Cover and refrigerate until ready to serve chicken.
If making tahini sauce - In a separate smaller mixing bowl, add all tahini sauce ingredients and whisk/stir until combined. Cover and refrigerate until ready to serve chicken.
Heat a large heavy bottomed skillet (like cast iron) over MED HIGH heat. Add a small drizzle of olive oil and when hot, add chicken in an even layer, cooking in batches if needed.
Cook chicken for 4-5 minutes on one side, then turn over and cook another 4 minutes on the second side.
Remove chicken to a plate and cover loosely with foil and let rest 5-7 minutes. Slice and enjoy!
