Cream of Avocado Soup

1 T unsalted butter
1 very small onion, chopped (about 1/3 c)
2 t peeled finely chopped fresh ginger root
2 to 3 garlic cloves, minced
2 ripe avocados, peeled, pitted, scooped out
¼ c fresh basil leaves
¼ c fresh cilantro leaves
¼ to 1/3 c heavy cream
¼ to 1/3 c fresh lime juice
3 ½ c ice water
salt, black pepper, cayenne pepper to taste

Place small pan over med low heat; when hot, add butter. When butter is melted, add onion, ginger, garlic, cook til golden. Cool for at least 5 minutes.

Place the avocados, basil, cilantro, cream, and lime juice in a blender and blend until pureed. Gradually, while the machine is running, add the water and reserved onion mixture and blend until completely smooth. Add seasonings to taste.

Transfer to a container, cover, and refrigerate at least 2 hours and up to overnight. Garnish with basil and cilantro.