Place whole squash (pierced the skin) on rake in 375ºF oven. Bake until soft (depending on size, 45 minutes to 1 hour).
Cut top off whole garlic bulb, wrap in foil and bake in oven for approx 30 minutes. Meanwhile, lightly brown onion in a few tablespoons oil.
Add stock, scoop out soft garlic into stock. Bring to a boil. Add seasonings. Reduce heat and simmer.
Notes
This recipe comes from a fantastic cookbook prepared by the Friends of the Grist Mill in 2003 based on some of the most popular recipes in the Tea Room.