Derby picnic pie with eggs from Oats in the North, Wheat from the South: The history of British Baking, savoury and sweet by Regula Ysewijn

Ingredients

• 1 onion
• 1 carrot
• 1 celery stalk
• 3 leeks
• 1 ham hock/rear shank
• 1 tbsp ground black pepper
• 1 quantity Hot water crust pastry
• 300 g (10½ oz) smoked bacon, thinly sliced
• 1 tsp ground black pepper
• 1 tsp sea salt
• 150 g (5½ oz) ham hock
• 4 eggs
• butter, for frying
• 1 bay leaf
• ¼ tsp ground mace
• 4 tbsp parsley, minced
• 200 g (7 oz) pork belly, finely chopped or coarsely minced
• 430 g (15 ¼ oz) pork shoulder, finely chopped or coarsely minced