Preheat the oven to 400F. Slice the top ½-inch off of the garlic clove. Remove any easily removeable garlic skin. Drizzle with enough olive oil to coat, then wrap in a piece of foil. Roast at 400F for 35-45 minutes, or until the garlic is soft and easily comes out of the garlic skin.
Heat a 6-quart Dutch oven or stock pot over medium heat. Drizzle with 2 tablespoons of olive oil. Once hot, add the onion, carrots, celery, and salt. Sauté until the onions start to turn translucent, about 5 minutes.
Stir in the parsley, rosemary, and thyme. Sauté another minute, or until the herbs are aromatic. Stir in 7 cups of vegetable broth, the drained chickpeas, paprika, and nutmeg.
Squeeze the roasted garlic into a small bowl or jar. Add the miso and 1-2 tablespoons of the vegetable broth. Whisk into a thick paste, then add into the soup, stirring to combine.
Using a Microplane or the smallest holes on a box grater, grate ½ inch (roughly 1 ½ teaspoons) of ginger. Stir into the soup and taste, adding the remaining ½ inch of ginger, if desired.
Bring to a boil, then stir in the egg noodles. Boil the soup until the egg noodles are al dente, about 8-10 minutes. Reduce heat to a gentle simmer.
Taste the broth, adding additional salt and fresh ginger, as desired. For a thinner soup, add the remaining 1-2 cups of broth. Continue to simmer for another 10 minutes to marry the flavors, or enjoy as is. Stir in the parsley and squeeze juice from ½ a lemon into the soup before serving. Serve with freshly ground black pepper, to taste.
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Notes
Garlic: This can be omitted, if desired. Because roasting garlic mellows its flavor, I don't find the soup to have an overpoweringly garlicky flavor. The garlic can be roasted 2-3 days in advance, then squeezed into a container and refrigerated or frozen for up to 3 months.
Broth: I use Better than Bouillon vegetable base and stir it into the boiling water. I find that that 2 heaping tablespoons is a good amount for this soup. This recipe would also work well with the No Chicken.
Egg noodles: Replace with 8 ounces of any medium pasta shape for a vegan option.
The noodles continue to soak up broth as they cool. Add extra vegetable broth before reheating, or enjoy as is.