Preheat oven to 200°C (180°C fan/Gas Mark 6).
Arrange the prosciutto slices in a single layer on a baking sheet lined with parchment paper. Bake for 8-10 minutes, or until crispy. Let cool slightly, then crumble into bite-sized pieces.
While the prosciutto is baking, place the Jersey Royal potatoes in a large pot and cover with cold water. Add a generous pinch of salt and bring to a boil. Reduce heat and simmer for 15-20 minutes, or until the potatoes are tender when pierced with a fork. If using asparagus, add the chopped asparagus to the potatoes for the last 3 minutes of cooking.
Drain the potatoes and asparagus well. Allow to cool slightly.
While the potatoes are cooling, prepare the dressing. In a small bowl, whisk together the melted Jersey butter, Jersey milk, lemon juice, and Dijon mustard. Season to taste with salt and pepper.
In a large bowl, gently toss the slightly cooled potatoes and optional asparagus with the dressing. Be careful not to overmix, as the potatoes are delicate.
Add the arugula (rocket) and crumbled crispy prosciutto to the bowl and gently toss to combine. Serve immediately or chill for later. Garnish with a sprig of parsley if desired.
Nutrition per serving (340g)
For an extra layer of flavor, try adding a handful of chopped fresh chives or parsley to the potato salad.
The potato salad can be made ahead of time and stored in the refrigerator for up to 2 days. Add the arugula (rocket) just before serving to prevent it from wilting.
If you don't have prosciutto, you can substitute with bacon or pancetta.
If Jersey asparagus isn't in season, consider adding some thinly sliced radishes for extra crunch and a peppery bite.
Large pot
Baking sheet
Whisk
Large bowl
No wine pairing suggestions available for this recipe.