Crumbly and delicate, these shortbread cookies are infused with subtle rosemary flavor. They are stealth cookies: They don’t look like much, they don’t sound fancy shmancy, and you probably don’t expect them to become your new favorite cookie. But they will sneak up on you. I find that after I eat one, I keep going back again and again to have “just another bite,” and before I know it, I’ve eaten three or four. They melt in your mouth, and they are especially appealing served with espresso