Mini pork pies with piccalilli

Ingredients:

• few dots of butter
• 600g shortcrust pastry, bought or homemade
• little flour, for dusting
• 85g dried white breadcrumbs
• 400g good Cumberland sausages (about 6)
• 200g smoked bacon lardons
• ¼ tsp each ground mace, ground pepper and dried sage
• 1 egg, beaten with a fork
• few pinches sesame seeds
• piccalilli, homemade or bought, to serve