2In a medium mixing bowl, combine 3 tablespoons olive oil, 2 tablespoons tomato paste, minced garlic, zest and juice of 1 lemon, salt, pepper, smoked paprika, oregano, and cayenne pepper. Mix well.
3Add the marinade to the chicken thighs and massage to coat all sides. Let marinate for 2-6 hours, ideally overnight.
4Remove chicken from the fridge and let it come to room temperature.
5Preheat oven to 425°F (218°C). Place chicken on a wire rack over a baking sheet.
6Roast chicken for 37-40 minutes at 425°F (or 40-45 minutes at 400°F/204°C) until cooked through and skin is crispy.
7While chicken cooks, make the sauce: In a food processor, combine Greek yogurt, fresh mint, scallions, jalapeño, 1 tablespoon olive oil, juice of half a lemon, salt, and pepper. Process until smooth. Taste and adjust seasoning.
8Serve chicken hot with the spicy yogurt sauce. Optionally, serve with rice, quinoa, or cucumber salad.