Place the olive oil, lemon juice, garlic, salt, black pepper, cumin, coriander, sweet paprika, smoked paprika, cayenne pepper, turmeric and cinnamon in a bowl. Whisk to combine.
Add the chicken to the bowl and spoon the marinade over the top.
Marinate for at least 1 hour or up to 24 hours.
Grilling Instructions: Preheat a grill or indoor grill pan over medium high heat. Add the chicken. Grill for 5-6 minutes per side or until cooked through.
Baking Instructions: Preheat the oven to 425 degrees F. Place the chicken thighs on a sheet pan coated with cooking spray. Bake for 30-35 minutes or until cooked through.
Slice the chicken. If you'd like, you can heat an additional tablespoon of olive oil over medium high heat in a large pan, and add the sliced chicken to crisp it up.
Serve the chicken with sauce, flatbread, lettuce, tomatoes and cucumber.