This is a Jamie Oliver recipe which we tried when I was trying to convince two friends they would like fennel. It was so fabulous that it's become a staple. The finished roast is marvelous and leftovers (if you have any) are just as good warmed up or made into sandwiches. We generally make an apple and pear compote (apples, pears, lemon juice in a gratin dish in the oven beside the pork) to go with it. A fabulous meal, good enough for a holiday dinner.