Grilled or Broiled Chicken Breasts with Honey-Marsala Sauce Recipe

• 1 Tbsp extra-virgin olive oil, plus as needed
• 8 oz red onions, fine diced
• 2 tsp garlic, minced
• 10 oz tomatoes, peeled, seeded
• 6 1/4 pint demi-glace
• 4 tsp honey
• 1 cup marsala
• 2 Tbsp kosher salt, plus additional as needed
• 1 Tbsp ground black pepper, plus additional as needed
• 50 each chicken supreme portions

Directions