Preheat the oven to 400 degrees F (200 degrees C). Line a baking sheet with greaseproof paper and pour the rock salt along the middle.
Using a sharp knife, prick the
Maris Piper Potatoes (4)
all over and rub with a little
Olive Oil (as needed)
. Place on top of the
Rock Salt (1 cup)
and bake in the oven for an hour or until tender. Leave to cool while you make the sauce.
Beef Marrow Bones (8)
in the oven just after you’ve removed the baked potatoes. To do this, arrange the bones on a lined baking sheet and season with
Coarse Sea Salt (to taste)
Coarse Black Pepper (to taste)
. Roast the bones for about 10 minutes or until browned. Allow to cool slightly.
In the meantime, add
Portobello Mushroom (1)
to a frying pan and sauté in the
Salted Butter (2 Tbsp)
Fresh Thyme (to taste)
, along with the
Garlic (4 cloves)
. Sauté over low heat until soft and fragrant.
Using a spoon or fork, extract the marrow from within the bones and add to the mushroom sauce and season to taste. Remove the sauce from the heat but keep it warm until needed.
To make the gnocchi, split open the baked potatoes, and spoon the insides into a potato ricer and rice into a large mixing bowl. Add the
Fine Salt (1 tsp)
, yolks of the
All-Purpose Flour (1 cup)
. Use a wooden spoon to combine. Turn the dough out onto a floured surface and gently knead until smooth.
Divide the dough into 4 portions, rolling each into a log about 30 cm (a ruler) in length.
Using a lightly floured knife, cut the logs into 2 cm pieces. Here you can either opt for classic gnocchi and roll each dumpling over a floured fork to achieve the identifiable indentations or you could leave the gnocchi as it and sauce them in a little butter instead of boiling.
Arrange the cut gnocchi on a floured tray and cover with a tea towel until ready to cook.
Add a little
Extra-Virgin Olive Oil (as needed)
to another frying pan and gently sauté each gnocchi dumpling until golden brown on either side. Serve the gnocchi in warmed bowls over a small helping of the Portobello & Bone Marrow sauce and a grating of fresh
Parmesan Cheese (to taste)