Beef Wellington with spinach & bacon - Good Food Middle East

Ingredients

• 700g-800g beef fillet, cut from the centre of the fillet so that it's all the same size
• large knob of butter
• 1 tbsp sunflower oil
• 500g spinach
• 12 thin slices smoked pancetta or rindless streaky bacon
• plain flour, for dusting
• 500g pack all-butter puff pastry
• 2 egg yolks
• knob of butter
• 1 shallot, finely chopped
• thyme sprig
• 1 bay leaf
• 1 tbsp plain flour
• glass of red wine
• 1 beef stock cube