sweet potato soup

I made this soup for cooking club last night. I think it is delicious and a perfect choice for the last day of below freezing temperatures. If you live in Mpls, that would be Wednesday. It is an adaptation from the Inn at Little Washington Cookbook by Patrick O'Connell. By adaptation, I mean I copied it down verbatim in shorthand in one minute's time.
adaptation = margin for human error


sweet potato soup

saute:
3 tablespoons butter
1 medium onion, chopped
1 teaspoon curry powder

simmer:
9 cups chicken stock
5-6 sweet potatoes, cubed
1/4 cup maple syrup
2-3 sprigs thyme
pinch cayenne
onion mixture from above

remove thyme sprigs and puree

add:
1 cup cream
1/8 teaspoon fresh grated nutmeg
salt & pepper