Add 4 skin-on bone-in chicken thighs to a bowl. Dab dry with a paper towel.
In a medium mixing bowl, make the marinade by adding 3 tbsp olive oil, 2 tbsp tomato paste, 4-5 minced garlic cloves, the zest and juice of 1 large lemon, two very generous pinches salt, pepper, 1 tbsp smoked paprika, 1 tbsp oregano, ¼ to ½ tsp cayenne pepper. Mix very well.
Add the marinade to the chicken and massage into the chicken, covering all sides. Let this soak up the flavors for 2-6hrs, but ideally overnight.
When you're ready to eat, remove chicken from fridge and let it come up to room temp before putting in the oven.
Place chicken on a wire rack and bake at 425F for 37-40 mins. Time varies by oven.
While the chicken is baking, make the sauce by processing 3 tbsp thick Greek yogurt (or labneh), a handful fresh mint (3 tbsp), 2 scallions, ½ large jalapeño, 1 tbsp olive oil, the juice of half a lemon, and a couple pinches of salt + pepper. Process well, taste, and adjust to your liking.
Plate up the chicken and serve with the sauce.
