INGREDIENTS
1/4 cup
Worcestershire sauce
1/4 cup
balsamic vinegar
4 tbsp
soy sauce
1 tbsp
dijon mustard
1 tbsp
minced garlic
1 tbsp
brown sugar
1 tsp
black pepper
1 1/2 lb
beef sirloin tips (or similar grilling steak) cut into 1½ inch cubes
1
large red onion, sliced into 1½ inch pieces