Slow Cooker Beef Bourguignon

Ingredients (10)

• + 3 tablespoons butter add to pantry
• + 3 tablespoons vegetable oil add to pantry
• ✓ 2 medium onions, quartered
• + 2 pounds beef stew meat add to pantry
• + 1 (750 milliliter) bottle red wine add to pantry
• + 6 carrots, chopped into large chunks add to pantry
• + 3 sprigs fresh thyme add to pantry
• + 2 large bay leaves add to pantry
• ✓ salt and freshly ground black pepper to taste
• + salt and freshly ground black pepper to taste add to pantry