Beef Medallions Marinated in Mustard

• 4 Quebec Beef top sirloin medallions, 225 g each
• Salt and pepper to taste

For the marinade:

• 80 ml (1/3 cup) canola oil
• 60 ml (1/4 cup) soy sauce
• 30 ml (2 tbsp) Dijon mustard
• 30 ml (2 tbsp) wholegrain mustard
• 30 ml (2 tbsp) maple syrup
• 15 ml (1 tbsp) minced garlic

For the sauce:

• 10 ml (2 tsp) canola oil
• 60 ml (1/4 cup) chopped shallots
• 80 1/3 cup (250 ml) red wine
• 1 cup (250 ml) demi-glace sauce