Serves12
                    
                
                
                    
                        
                            - Active Time:20 min
- Start to Finish:45 min
 
            
                
                    
                    If your pulse quickens at the suggestion of salt and vinegar potato chips, you'll be hooked on this warm potato salad after one bite. A little Old Bay seasoning gives it a modest kick.
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              June 2006
            
          
          
      
  
                
                
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1
                                            
                                            large red onion, cut lengthwise into 1/3-inch-wide wedges and layers separated
                                            
                                        
- 
                                            1/2
                                            cup
                                            plus 2 tablespoons cider vinegar
                                            
                                        
- 
                                            2
                                            teaspoons
                                            salt
                                            
                                        
- 
                                            1/2
                                            teaspoon
                                            salt
                                            
                                        
- 
                                            5
                                            lb
                                            medium yellow-fleshed potatoes such as Yukon Gold
                                            
                                        
- 
                                            2
                                            
                                            to 2 1/2 teaspoons Old Bay seasoning
                                            
                                        
- 
                                            1 1/4
                                            teaspoons
                                            sugar
                                            
                                        
- 
                                            3/4
                                            cup
                                            extra-virgin olive oil
                                            
                                        
 
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            Toss together onion, 2 tablespoons vinegar, and 1/2 teaspoon salt in a bowl. Marinate at room temperature, tossing occasionally, until slightly softened and pink, about 45 minutes.  
- 
                                            
                                             Cover potatoes with salted cold water in a 5- to 6-quart pot, then simmer, uncovered, until just tender, 15 to 20 minutes. While potatoes cook, whisk together 2 teaspoons Old Bay seasoning with sugar, remaining 1 1/2 teaspoons salt, and remaining 1/2 cup vinegar in a small bowl. 
- 
                                            
                                            Drain potatoes in a colander, and when cool enough to handle but still warm, peel and cut into 1/2-inch-wide wedges. Toss warm potatoes with vinegar mixture in a large bowl. Add onion mixture and oil, tossing to combine. Add more Old Bay seasoning (to taste) if desired. Serve warm or at room temperature. 
 
                        
                    
                    Cooks' note: Onion can be marinated, covered and chilled, up to 1 day.