Traditional sausage rolls

Filling

• 1 onion, cut into halves
• 1 garlic clove
• 100 g bacon, cut into pieces (1-2 cm)
• 2 tsp fennel seeds
• 20 g olive oil
• 500 g pork mince
• 1 tsp English mustard
• 40 g breadcrumbs
• 1 egg
• ¼ tsp salt
• ¼ tsp ground black pepper

Assembly

• 3 sheets ready-made puff pastry
• 1 egg, beaten