Yummy teriyaki sauce
1 cup soy sauce
1 cup ruby red grapefruit juice
1/3 cup hoisin sauce
1/4 cup ketchup
3 tablespoons rice wine vinegar
1/4 cup brown sugar, packed
1 tablespoon ground ginger
1 habanero pepper, halved and seeded
4 cloves garlic, smashed
Combine soy sauce, grapefruit juice, hoisin sauce, ketchup, rice wine vinegar, brown sugar, ginger, habanero pepper, and garlic in a saucepan over medium high heat. Bring to a boil, then reduce heat to medium-low, and simmer 10 minutes, or until thick, stirring occasionally. Strain sauce to remove pepper and garlic. Refrigerate in a covered container until ready to use.
Although I like to use half low sodium, half regular soy sauce and I add some fresh ginger and extra peppers. I marinate the meat in this mixture as long as possible. You have to make sure to get real grapefruit juice, not the grapefruit cocktails.