Make Caroline Eden's polpette pasta

Ingredients

• 500g ground beef
• 500g ground pork
• 1 large egg
• ½ teaspoon fine salt
• 75g breadcrumbs
• 1 large garlic clove, crushed
• 1 teaspoon fennel seeds, crushed to a powder
• 2 tablespoons extra virgin olive oil
• 1 medium onion, sliced into half moons
• ½ teaspoon freshly ground black pepper
• 1 tablespoon tomato paste
• Pinch of cayenne pepper, to taste
• 2 fat garlic cloves, chopped
• 1 tablespoon dried oregano
• Pinch of caster sugar
• 2 x 400g cans peeled plum tomatoes
• 200ml chicken stock
• 375g of spaghetti or linguine
• Parmesan
• Roughly chopped flat-leaf parsley