This is my absolute favorite crostini! If you've never cooked with anchovies before, don't worry, they don't taste "fishy" at all and they totally dissolve in the butter. In fact, when I serve this I never tell people that there are anchovies in it. If anyone asks, I just say that I use garlic and herbs and my 'secret ingredient'. So far no one has guessed my secret ingredient and everyone loves the crostini. Based on a recipie by Giada De Laurentiis.