If you haven't found fresh porcini, you can use dry ones. They make an excellent spice. To do this, grind them in a coffee grinder into a mushroom mixture and add as a seasoning to risotto or any other dish where you would like to have the aroma of porcini mushrooms. In our risotto recipe, if you use a mushroom spice, increase the amount of cup mushrooms and add the spice during frying.