1 to 1 1/4 cups cooked mayonnaise
1/2 cup (4 oz.) sour cream or sour half and half
1 1/2 tablespoons snipped fresh parsley
1/4 cup minced green onions with tops
2 tablespoons lemon juice or tarragon or wine vinegar
1/2 clove garlic, minced
1/2 teaspoon salt
Dash ground pepper

In medium bowl, stir together all ingredients until well combined. Cover and chill if not using immediately.