Champagne Squash Soup

6
2 acorn squash, cooked
2 medium onions, halved and thinly sliced
2 tbsp butter
1/4 cup champagne
4-5 cups chicken broth
2 tbsp butter
1/2 tsp nutmeg
Salt and pepper to taste
1/4 cup sour cream
  1. Saute onions in 2 tbsp butter
  2. Add champagne and cook until liquid is absorbed and onions are golden brown, stirring often
  3. Add squash and broth, cover and heat through over medium heat stirring, occasionally
  4. Use immersion blender to puree until smooth then whisk in 2 tbsp butter
  5. Season with nutmeg, salt, and pepper
  6. To decorate drop a small spoonful of sour cream in each bowl and swirl with a knife