When measuring flour, we spoon it into a dry measuring cup and level off excess. (Scooping directly from the bag compacts the flour, resulting in dry baked goods.) Ajwain seeds are available at South Asian or specialty spice markets. They give texture and a slightly nutty, anise flavor to the dough. Garam masala is an Indian spice mixture which usually contains cinnamon, cloves, cardamom, peppercorns and cumin. It's available in Indian and specialty food stores. Black mustard seeds are available at South Asian or specialty spice markets. They are the most pungent of all the mustard seeds. Feel free to substitute brown or yellow mustard seeds.