Split Pea and Parsnip Soup, great for a chilly fall evening

This is from my new Fresh from the Vegetarian Slow Cooker cookbook (thanks, dear!). Eight hours on low in the slow cooker was not quite enough to soften all the peas. Maybe a bit longer next time? Omitted the Liquid Smoke and the added salt and used half veggie stock and half chicken stock. The parsnips were so sweet!