Green Goddess Dressing- Chez Panisse - cooking recipe

Ingredients

1/2 ripe medium avocado (about 7 ounces)
3 tablespoons white wine vinegar
1 garlic clove, finely chopped
1 oil-packed anchovy, very finely chopped
1 teaspoon fresh lemon juice
1/2 teaspoon fresh lime juice
1/4 teaspoon sugar
3/4 cup olive oil
1/4 cup heavy whipping cream
3 tablespoons chopped fresh Italian parsley
2 tablespoons chopped fresh tarragon
2 tablespoons chopped fresh cilantro
1 tablespoon chopped fresh basil
1 small shallot, finely chopped (about 1 tablespoon)

Preparation

Blend first 7 ingredients in processor until coarse puree forms.
With machine running, gradually add oil through feed tube; blend well. Transfer mixture to bowl; whisk in cream.
Add parsley, tarragon, cilantro, basil, and shallot; whisk to combine.
Season dressing to taste with salt and pepper.
Cover and chill at least 3 hours (dressing will separate if not chilled). Let stand at room temperature 20 minutes and rewhisk before serving.