Deep-dish cheese, onion & potato pie - Good Food Middle East

Ingredients

• 200g strong, hard cheese (we used cheddar ), ½ coarsely grated, ½ cut into small chunks
• 200ml tub crème fraîche
• 500g shortcrust pastry
• 1kg floury potatoes, thinly sliced
• 2 onions, finely sliced
• 1 bunch spring onions, roughly chopped
• small pinch grated nutmeg
• large pinch paprika
• 1 egg, beaten