That was advice I could get behind. Of to the grocery store to buy chicken broth and a chicken and vegetables including a sweet potato--because sweet potato was strongly recommended. I boiled the chicken in stock with onion and garlic until the whole house smelled of it. I threw in a bouquet grani that was heavy on the black peppercorns. For dinner I made bread and we had some of the soup thickened with a little flour to make stew. The sweet potato I bought turned out to be very pale but it was good. With carrots it added a touch of sweetness. Sometimes I put a little apple juice in my chicken vegetable soup--it's something they used to do in the 18th century and I like the touch of it. But today I thought onion and garlic and pepper were more, well hearty.
Outside is freezing rain. Inside, the house is warm, the fire is going, the dogs are barking at the deer wandering down our street. And I'm sure my immune system is heartened.