Place half the roe on top of a piece of buttered toast, put a good peeled mushroom on top, add salt and pepper to taste and a little piece of butter. Place the other half of the roe on top of the mushroom, add a little cayenne pepper, a pinch of grated cheese (Parmesan or any other kind), a few breadcrumbs and another piece of butter. Place in paper bag, seal up, and place on grid. Allow ten minutes in hot oven (320 Fahr.).