Recipe video above. "The secret is the bacon..." It really takes this sausage roll to another level! Also, sautéing the onion and celery before mixing into the filling makes it sweet and more moist than the usual, and using panko instead of normal breadcrumbs also contributes to making the filling of this sausage roll so moist.The addition of fennel adds an extra burst of flavour but it's optional. Pork and fennel are great mates and though most everyday suburban bakeries won't use it…