Makesabout 3 cups
                    
                
                
                    
                        
                            - Active time:15 min
 
                        
                            - Start to finish:15 min
 
                        
                    
                
             
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              November 1999
            
          
          
      
  
                
                
            
            
            
                If you’re pressed for time, you may want to try a jarred brand of tomatillo salsa instead of makng it from scratch. We can’t attest to the quality of all of them, but we do love Rick Bayless’s, which has a fine, robust flavor. (Look for it in specialty foods stores and in some supermarkets.)
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1 1/2
                                            lb
                                            fresh tomatillos or 3 (11-oz cans tomatillos)
                                            
                                        
 
                                    
                                        - 
                                            5
                                            
                                            fresh serrano chiles
                                            
                                        
 
                                    
                                        - 
                                            3
                                            
                                            garlic cloves, unpeeled
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            cup
                                            fresh cilantro
                                            
                                        
 
                                    
                                        - 
                                            1
                                            
                                            large onion, coarsely chopped
                                            
                                        
 
                                    
                                        - 
                                            2 
                                            teaspoons
                                            kosher salt
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
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Preheat broiler.
                                         
                                    
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If using fresh tomatillos, remove husks and rinse under warm water to remove stickiness. If using canned tomatillos, drain and measure out 2 cups. Broil chiles, garlic, and fresh tomatillos (do not broil canned) on rack of a broiler pan 1 to 2 inches from heat, turning once, until tomatillos are softened and slightly charred, about 7 minutes.
                                         
                                    
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Peel garlic and pull of tops of chiles. Purée all ingredients in a blender. 
                                         
                                    
                                
                             
                        
                    
                    Cooks’ note: Salsa can be made 1 day ahead and chilled, covered.