Beef, oyster and stout cottage pies recipe | Gourmet Traveller recipe

Ingredients

• 70 gm butter, coarsely chopped
• 2 tbsp sunflower oil
• 1 onion, thinly sliced
• 1.3 kg beef chuck, cut into 1cm pieces
• 1 tbsp plain flour
• 2 tbsp Worcestershire sauce
• 375 ml stout
• 24 oysters
• 360 gm parsnips, coarsely chopped (about 4)
• 500 gm floury potatoes, such as kennebec (about 4)
• 2 tbsp buttermilk
• To serve: boiled peas, buttered
• Shortcrust pastry
• 375 gm plain flour
• 10 gm salt
• 240 gm unsalted butter, finely chopped
• 1 egg
• 1½ tbsp milk