Bavette Steak with Red Wine Jus

Ingredients

• 1-1/2 pounds Bavette Steak
• 4 tablespoons Butter
• 6 garlic cloves, crushed
• 1/2 bunch thyme sprigs
• Salt & pepper to taste
• 3 pounds Oxtail
• 1-1/2 cups onion, small dice
• 1-1/2 cups carrots, small dice
• 3/4 cup celery, small dice
• 2 tablespoons tomato paste
• 4 garlic cloves, crushed
• 1 bottle red wine, dry
• 1 quart beef stock
• 2 bay leaves
• 2 tablespoons butter
• Neutral oil as needed
• 4 cups cremini mushrooms, halved or quartered
• 3 cups fingerling potato, 1/2” rounds
• 3 cups Cippolini onion, sliced in half along the width
• 3 tablespoons whole grain mustard
• Olive oil to coat