Rachael Ray's Secret Ingredient For Nut-Free Pesto - Chowhound

Capers, while certainly not similar to the subtle taste of pine nuts, will bring an added complexity to your pesto. The tiny green morsels, which are nothing more than immature flower buds from the caper bush that are dried and subsequently pickled or otherwise cured, have an acidic and tangy taste with the slightest hint of a lemony flavor. If you were to pick a comparison for them, green olives would be a…