The key to tender flank steaks. Lasts 5 days in air-tight cover.

Ingredients

• 3 cup oil
• 2 cups balsamic vinegar
• 1/3 cup dijon mustard
• 1/3 cup minced garlic
• 2 TBSP kosher salt
• 5 kg flank steak (whole package from Sysco)

Steps

1. combine ingredients
2. Marinate steak for up to 5 days