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                                            Prep Time: 0 Minutes Cook Time: 0 Minutes  | 
                                            Ready In: 0 Minutes Servings: 8  | 
                                         
                                        
                                     
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                    When my Scottish stepmother married my father, in 1963, she had a lot to learn about cooking. Once she made my father what she thought was a charming American variety of onion for dinner; they turned out to be bulbs of garlic. She's come a long way since then, providing our family with increasingly exotic taste memories influenced by years of living in Mexico and Brazil. The secret to a good fool, whatever the fruit, is to taste as you go. Some need more sugar; any fruit with little acidity benefits from a smidgen of lemon or lime juice; and more delicate flavors, like mango, require less cream. Active time: 15 min Start to finish: 1 1/4 hr (includes chilling) Ingredients: 
                    
                        
                                                1 (14-oz) package thawed (but cold) unsweetened passion-fruit (maracuyá) purée such as goya brand* (about 1 1/2 cups)  |  
                                                1 cup sugar, or to taste  |  
                                                2 1/2 cups chilled heavy cream  |  
                                                
                     
                    Directions: 
                    
                        
                            
                                1. Whisk purée with 2/3 cup sugar in a bowl until sugar is dissolved. 2. 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. 3. 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.                              | 
                         
                         
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