Chilled Cucumber & Avocado Soup

2 ripe avocados
2 English cucumbers, roughly chopped
1 cup sour cream
1 cup yogurt
1/4 cup chopped fresh chives
2 tsp fresh lime juice
2 tsp salt
1 small jalapeño, chopped

For garnish
chopped cucumber
fresh chives, chopped.

Peel and pit avocado. Combine all ingredients in a blender. Blend until very smooth and chill for at least 4 hours. Garnish with the chopped cucumber and chives for service