Ingredients Yields: 6 servings 3 chicken breast halves, boneless and skin-on ½ teaspoon cayenne pepper, to taste 1 teaspoon onion powder ⅓ cup white balsamic vinegar 1½ teaspoons kosher salt 1 teaspoon black pepper, freshly cracked 2 teaspoons papaya paste (see tips) 2 tablespoons coarse-grained mustard 1 clove garlic, finely minced 1 sprig fresh sage…