You can substitute squash for 3 large sweet potatoes (yams)

2 Tablespoons Butter Or Olive Oil	1 Garlic Clove (optional), Minced
1 Onion (large), Finely Chopped	1/2 Tsp Thyme
1 Apple (large), Finely Chopped	1/2 Tsp Ginger (fresh If Possible)
1 Small Butternut Squash, Diced	2 1/2 Cups Vegetable Stock

In a large pot cook onions, butter until soft. Add apples cook 1 minutes. Add ginger, garlic (if using) and squash and cook for about 10 minutes. Add stock and thyme cook until squash is done. Use blender to puree!!