Ingredients

Steps

• Preheat the oven to 200°C.
• Heat a griddle pan until smoking.
• Rub the steak with oil and season with salt and pepper.
• Chargrill the steak for 4 minutes on each side.
• Rest the cooked steak for 3 minutes.
• Melt butter and oil in a frying pan over medium heat.
• Cook the onions and garlic until softened.
• Sauté the mushrooms until cooked through.
• Add wine and stock and bring to the boil.
• Simmer until thickened, then stir in the chervil.
• Plate the steak and spoon the sauce around it.