To brine the lamb neck fillets, place them in a sealable food bag along with the whey water, herbs, lemon peel and garlic. Seal and leave overnight in the refrigerator.
When ready to cook, rinse the brine from the meat. Pre-heat the oven to 180C, heat an oven proof griddle pan to high and sear the fillets for 3-4 mins on one side. Turn over, add a couple of knobs of butter and then place the pan in the oven and cook for another 8-10 mins.
Remove from the heat, place the fillets on a board, season with a good pinch of sea salt, cover and rest for at least 10 mins, before slicing.
Make a simple gravy by deglazing the pan with beef stock and whisk in a little more butter.
Boil the potatoes in plenty of salted water until tender. Drain and toss in a little extra virgin olive oil, a generous pinch of sea salt and some toasted fennel seeds. Slightly crush the potatoes with a fork.
For the wild garlic, simply rinse and steam or sauté in a little butter and season to taste.
To serve, start with the crushed potatoes at the bottom, add some wild garlic and then the slices of lamb. Pour over the juices from the pan and garnish with herbs such as sea rosemary or thyme and roughly chopped hazelnuts.
Serve with lime yoghurt on the side – simply stir in the zest of a lime into thick natural yoghurt.