Ingredients

3/4 cup balsamic vinegar
1/2 cup olive oil
2 teaspoons brown sugar
1/4 cup finely minced sweet onion
cracked black pepper

Directions

In a small bowl, whisk together the vinegar, oil, brown sugar, onion, and pepper. Pour over desired meat, and marinate in the refrigerator for 1 to 4 hours, turning meat occasionally.