Makes about1 qt
                    
                
                
                    
                        
                            - Active Time:20 min 
- Start to Finish:8 1/2 hr (includes chilling)
 
            
                
                    
                    NANCY HINTON, À LA TABLE DES JARDINS SAUVAGES, MONTREAL
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              April 2009
            
          
          
      
  
                
                
            
            
            
                
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1/3
                                            cup
                                            water
                                            
                                        
- 
                                            4
                                            teaspoons
                                            porcini powder (see cooks’ note, below)
                                            
                                        
- 
                                            2
                                            cups
                                            whole milk
                                            
                                        
- 
                                            2/3
                                            cup
                                            heavy cream
                                            
                                        
- 
                                            2/3 
                                            cup
                                            sugar, divided
                                            
                                        
- 
                                            5
                                            
                                            large egg yolks
                                            
                                        
- 
                                            1
                                            tablespoon
                                            honey
                                            
                                        
- 
                                            1
                                            teaspoon
                                            fresh lemon juice, or to taste
                                            
                                        
 
                    
                 
            
            
            
            
            
                
                    
                        - 
                            
                                Equipment:ice cream maker 
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            Heat water in a heavy medium saucepan until hot, then remove from heat and stir in porcini powder. Let stand 20 minutes to infuse. 
- 
                                            
                                            Add milk, cream, and 1/3 cup sugar to porcini mixture and bring to a simmer, stirring until sugar has dissolved. 
- 
                                            
                                            Whisk together yolks, remaining 1/3 cup sugar, and honey in a bowl, then slowly whisk in hot milk mixture. Return mixture to pan and cook over medium heat, stirring with a wooden spoon, until mixture is slightly thickened and registers 175ºF. Immediately strain custard through a fine-mesh sieve into a bowl set in an ice bath and cool to room temperature, stirring occasionally. Stir in lemon juice. Chill custard, its surface covered with parchment paper or plastic wrap, at least 6 hours (or overnight). 
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                                            Freeze custard in ice cream maker, then transfer to an airtight container and put in freezer to firm up, at least 1 hour. 
 
                        
                    
                    Cooks’ notes: - To make your own porcini powder, grind 1/2 oz dried porcini mushrooms (about 1/2 cup) in an electric coffee/spice grinder.
- For best results, chill custard overnight before freezing.
- Ice cream keeps 2 weeks.