In a medium bowl, whisk together yogurt, salt and 1 cup water. Place chicken halves in a gallon-size resealable bag and pour yogurt mixture over. Seal, pressing out all air, and toss to coat ...
Make the marinade: In a medium bowl, whisk together yogurt, garlic, vinegar, paprika, red pepper flakes and salt. Spatchcock the chicken: Place chicken, breast-side down, on a cutting board.