Easy Yogurt-Marinated Chicken made with grilled chicken thighs (or chicken breasts) made in a Greek yogurt marinade for the most tender chicken. Yogurt-Marinated Chicken These grilled Yogurt-Marinated Chicken thighs (or breasts) are so juicy and delicious thanks to this easy yogurt marinade. This quick yogurt marinade is flavored with lots of garlic, oregano, red vinegar