Pureed Butternut Squash Soup

I made this out of some leftover cooked butternut squash so it was fast work. The squash broke down in the pan so I didn't puree it, but it was still super good. I usually add sugar to my butternut squash soup, but the orange juice made it sweet enough and the ginger was super tasty!

from Everyday Food (Martha Stewart for the common man)

2 Tbsp. butter
1 small onion, chopped
1 2" piece ginger, peeled and chopped
2 cloves garlic, chopped
2 3/4 lbs butternut squash, peeled, seeded, chopped (1" cubes)
1/4 cup fresh orange juice
salt and pepper
sour cream (optional)

1. Melt butter in saucepan over medium. Cook onion 2 minutes; add ginger, garlic and squash and cook 6-8 minutes, stirring occasionally. Stir in 4 cups water. Bring to a boil; reduce heat and simmer until squash is tender (20 minutes).

2. Puree soup in two batches. Stir in orange juice and 1 1/2 tsp. salt. Season with pepper and serve with sour cream if desired.