These are a favorite in my house, they are incredibly easy to make and so good!. A good olive oil and Parmesan cheese is a must with this. Purchase the long narrow French baguette for this and make certain that it is a day old, it makes slicing easier. I have even made these using melted butter in place of olive oil, and added in some garlic powder with the cayenne/cheese mixture. If you like super spicy just increase the cayenne slightly. These make a great late-nite or weekend snack! Yield is only estimated depending on the size of the baguette.