Crostini are small toasts topped with a variety of ingredients and are served as appetisers. They are native to tuscany and have several classic toppings to choose from. This one consists of caramelised peppers and olives that are bound with cheese and topped on crusty french bread. Good crusty bread is the single most essential ingredient for this recipe. This is perhaps the best crostini of all and is perfect for serving with drinks before a meal.