Grilled steak topped with ceps - Good Food Middle East

Ingredients

• 1 tbsp olive oil
• 2 sirloin steaks, about 140g/5oz each
• 25g butter
• 100g fresh ceps, trimmed and finely sliced
• 1 garlic clove, chopped
• 50ml white wine
• small handful mixed soft herbs such as parsley, chives and tarragon, leaves picked and finely chopped
• 1 tbsp crème fraîche
• 1 egg yolk
• 25g parmesan, grated