Preparation Whisk purée with 2/3 cup sugar in a bowl until sugar is dissolved. Beat cream with remaining 1/3 cup sugar in another bowl with an electric mixer until it just holds stiff peaks. Fold sweetened purée into cream. Cooks' note:Fool is best eaten the day it is made. Refold if fruit juices begin to separate from cream. Variations (number of servings vary): • Raspberry, blackberry, or strawberry: 1 pound fresh or thawed (but cold) berries, puréed, or 1 1/2 cups unsweetened fruit purée, strained; 1/2 cup sugar; 1 1/2 cups heavy cream; 1 tablespoon lemon juice. • Guanabana (soursop) or mango: 1 (14-ounce) package thawed (but cold) unsweetened guanabana or mango purée (1 1/2 cups), or 2 mangoes (1 1/2 pounds), peeled, seeded, and puréed; 1/2 cup sugar; 3/4 cup heavy cream; 2 tablespoons lime juice.
Preparation Whisk purée with 2/3 cup sugar in a bowl until sugar is dissolved. Beat cream with remaining 1/3 cup sugar in another bowl with an electric mixer until it just holds stiff peaks. Fold sweetened purée into cream. Cooks' note:Fool is best eaten the day it is made. Refold if fruit juices begin to separate from cream. Variations (number of servings vary): • Raspberry, blackberry, or strawberry: 1 pound fresh or thawed (but cold) berries, puréed, or 1 1/2 cups unsweetened fruit purée, strained; 1/2 cup sugar; 1 1/2 cups heavy cream; 1 tablespoon lemon juice. • Guanabana (soursop) or mango: 1 (14-ounce) package thawed (but cold) unsweetened guanabana or mango purée (1 1/2 cups), or 2 mangoes (1 1/2 pounds), peeled, seeded, and puréed; 1/2 cup sugar; 3/4 cup heavy cream; 2 tablespoons lime juice.