Ingredients:

1/3 cup apple cider vinegar (or more to taste)
1 (6) ounce pineapple juice
1/3 cup soy sauce, low sodium
1/2 cup brown sugar
1 1/2 teaspoons minced garlic
1 1/2 teaspoons ginger

Beef cut of your choice

Directions:

Simmer all ingredients, cool and place in sealable plastic bag with your choice of steak cut or kabobs. Marinate steak in refrigerator 2 – 3 days. Discard sauce. Grill or broil.