Sophie Grigson's Strascinati Recipe

Ingredients

• 160-200g strascinati pasta or orecchiette
• For the Sauce
• 30g walnuts
• 2 tablespoons extra virgin olive oil
• 1 /2 red onion, chopped
• 100g plain, high quality sausages, skinned and broken into small pieces
• 2 cloves garlic, finely chopped
• 100ml red wine, preferably Negroamaro or Primitivo
• 1 1/2 tbs tomato puree
• 1 heaped tablespoon chopped parsley plus a little extra to garnish
• 40g radicchio, shredded
• Salt, freshly ground black pepper and a pinch or two of sugar if needed
• To Serve
• freshly grated Parmesan