Copyright belongs to someone, but I have no idea who! This was unattributed in a box I found while organizing my office.
1 1/2 cups buttermilk
4 teaspoons grated fresh ginger
4 teaspoons minced garlic
2 teaspoons cumin
2 teaspoons salt
1/2 teaspoon ground red pepper
8 boneless, skinless chicken breast halves
Combine marinade ingredients in zip-top plastic bag. Add chicken, marinate overnight. Grill.