Makes:about 1 quart
                    
                
                
                    
                        
                            - Active time:15 min
 
                        
                            - Start to finish:3 3/4 hr (includes freezing)
 
                        
                    
                
             
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              July 2006
            
          
          
      
  
                
                
            
            
            
                Fresh and creamy all at once, this clever combination of rich ricotta ice cream and icy-cold watermelon chunks is a twist on the classic Creamsicle. Shaved bittersweet chocolate complements both flavors beautifully.
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1
                                            
                                            (15-oz) cold container whole-milk ricotta (1 2/3 cups) or 1 2/3 cups fresh ricotta
                                            
                                        
 
                                    
                                        - 
                                            3
                                            oz
                                            cream cheese, softened
                                            
                                        
 
                                    
                                        - 
                                            1
                                            cup
                                            cold whole milk
                                            
                                        
 
                                    
                                        - 
                                            1
                                            cup
                                            sugar
                                            
                                        
 
                                    
                                        - 
                                            2
                                            
                                            Tbsp dark rum
                                            
                                        
 
                                    
                                        - 
                                            1
                                            teaspoon
                                            finely grated fresh lemon zest
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            vanilla
                                            
                                        
 
                                    
                                        - 
                                            1/8
                                            teaspoon
                                            salt
                                            
                                        
 
                                    
                                        - 
                                            1/3
                                            cup
                                            cold heavy cream
                                            
                                        
 
                                    
                                        - 
                                            1
                                            
                                            (4 1/2- to 5-lb) wedge of watermelon, cut into 1-inch-thick slices and chilled
                                            
                                        
 
                                    
                                        - 
                                            1
                                            oz
                                            fine-quality bittersweet chocolate (from a 3-oz bar), shaved (1/4 cup)
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
                
                    
                        - 
                            
                                
Special equipment:
                            
                            an ice cream maker
                         
                    
                
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            
Blend cheeses, milk, sugar, rum, zest, vanilla, and salt in a blender until smooth, about 1 minute. Add cream and blend until just combined, about 5 seconds.
                                         
                                    
                                        - 
                                            
                                            
Freeze mixture in ice cream maker, then transfer to an airtight container and put in freezer to harden, at least 3 hours. 
                                         
                                    
                                        - 
                                            
                                            
Put scoops of ice cream on watermelon slices and top with chocolate shavings.