sentence: cut and shape the apple slices as to thick flat and even surface sentence: place the apple pieces on a plate and season with salt and pepper sentence: heat some duck fat in a pan add the apple and sprinkle sugar on top sentence: slice the foie gras sentence: remove the vein from the foie gras sentence: sprinkle some salt and pepper on both the sides of the foie gras slice sentence: place the seasoned foie gras in the pan and cook until it is golden brown and sentence: remove the cooked foie gras and pat it with a towel to strain excess oil sentence: put the foie gras on the bottom slice of the apple sentence: saute one slice of the cep mushroom in duck fat sentence: place the sandwich in the pan sentence: add cider vinegar and sweet cider to the apple sentence: add some beef stock to the apples sentence: plate the burger with fresh herbs vinegary and cubes of foie gras