Crostini is a very versatile and popular appetizer of italian origin. This classic dish is made with small slices of grilled or toasted bread, usually brushed with butter or olive oil, and topped with varied ingredients like cheese, vegetables, herbs and sauces. This recipe shows you how to make a basic crostini. You can enhance it in any way, with toppings of your choice. It is best enjoyed with a cup of hot soup.