Immune Building for Winter

With our abrupt return to the realities of winter, I'm going to warm things up by making an immune building herbal tonic soup recommended by a most knowledgeable friend, Ms. A. It includes immune boosting ingredients I've long believed in, like ginger and garlic, but I'm really looking forward to experimenting with astragalus, a root that's completely new to me. Fortunately she supplied the astragalus, but with her help, I've found that Rebecca's Herbal Apothecary here in Boulder also carries it. What fun!