Method
Step 1
Prepare all ingredients as indicated above
Step 2
Place a large pot of salted water on to a high heat and add the potatoes into the cold water. Bring the water up to a boil and cook until the potatoes are soft, then drain.
Step 3
Season the steak with the celery seeds, a drizzle of olive oil and a generous amount of salt and pepper. Put a dry griddle/frying pan on high heat. Place steaks in the hot pan and sear for 2-3 minutes either side for a medium - rare steak. Flank steak is best served rare but adjust time to suit your preference. Important – only turn steaks once using tongs (or spoons). Steaks should not overlap. When done, remove and set aside on a plate covered with tin foil to rest for about 10 minutes. To serve slice the steak against the grain and pour over the juices that escaped when the steak was resting. Season with salt and a few drops of lemon juice.
Step 4
Place the potatoes, celery and radish in a bowl and dress with a good drizzle of olive oil and lemon juice. Season with salt and pepper. And top with parmesan, rocket and celery leaves. Serve alongside the steak.