Green Goddess Dressing

Name: Green Goddess Dressing
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)