OK, so hopefully you all bought a coffee grinder to use for grinding up spices as you need them for recipes.  Here is another use for that spice grinder.  When you are making mushroom dishes such as mushroom risotto, stroganoff, or stews, try throwing a handful of dried porcini mushrooms into the spice grinder.  Then add the mushroom powder you are left with to the chicken or beef stock that your recipe calls for.  This creates an incredibly rich and delicious mushroom flavor to enhance your dish.