Mustard-Dill Sauce

1. Whisk the egg yolks and vinegar. Slowly add 200ml vegetable oil to make a mayonnaise. (Alternatively use 250g of bought mayonnaise). Add the whole grain mustard, fresh dill and icing sugar. Season with salt and pepper.

Salmon Tatare

1. Cut the onion into fine cubes and blanch them briefly. Cool in iced water and strain.
2. Cut the salmon into fine cubes and season with salt and pepper. Season the sour cream with lemon juice, salt and pepper.
3. Mix all ingredients together and form into four portions with a spoon or ice cream scoop.

Potato Cake

1. Heat the oil in a frying pan. Place four piles of potato in the pan and flatten them with a palette. Fry until the edge is brown and turn them to fry the other side.

To Assemble

1. Arrange the smoked salmon and tarar on the hot, crispy potato cake on each plate and garnish with the mustard-dill sauce and a dill leaf.