Devilled sausages

Ingredients

• 1 tbsp oil
• 6-8 herby beef sausages
• 1 onion, finely chopped
• 1 Granny Smith apple, skin on, grated
• 1/2 cup fruit chutney
• 1 1/2 cups beef stock
• 1 tbsp brown sugar
• 1 tbsp Worcestershire sauce
• 1/2 tbsp soy sauce
• 1 tbsp cornflour
• 1 tbsp cold water