Makesabout 60 hors d’oeuvres
                    
                
                
                    
                        
                            - Active time:1 1/4 hr
- Start to finish:1 1/2 hr
 
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              December 2007
            
          
          
      
  
                
                
            
            
            
                Trompe l’oeil as much as hors d’oeuvres, these rolls use carrot where nori would usually be at a sushi bar and boneless beef top loin instead of tuna. The pungent mustard sauce is an artful counterpoint to the sweet carrot.
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            2
                                            
                                            (1-inch-thick) boneless beef top loin (strip) steaks (about 1 1/4 lb total)
                                            
                                        
- 
                                            1
                                            tablespoon
                                            vegetable oil
                                            
                                        
- 
                                            1
                                            lb
                                            large carrots (2 to 4), trimmed to 6 inches long
                                            
                                        
- 
                                            3
                                            tablespoons
                                            chopped basil
                                            
                                        
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                                            3
                                            tablespoons
                                            chopped flat-leaf parsley
                                            
                                        
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                                            3
                                            tablespoons
                                            Dijon mustard
                                            
                                        
- 
                                            2
                                            tablespoons
                                            minced shallot
                                            
                                        
- 
                                            1
                                            tablespoon
                                            drained capers, finely chopped
                                            
                                        
- 
                                            1
                                            
                                            garlic clove, minced
                                            
                                        
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                                            3
                                            tablespoons
                                            extra-virgin olive oil
                                            
                                        
 
                    
                 
            
            
            
            
            
                
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
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                                            Preheat oven to 350°F with rack in middle. 
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                                            Heat a dry 12-inch heavy skillet (not nonstick) over medium-high heat until hot, about 2 minutes. Meanwhile, pat steaks dry and sprinkle all over with 1/2 teaspoon each of salt and pepper (total). 
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                                            Add vegetable oil to hot skillet, swirling to coat bottom, then brown steaks, turning once, about 4 minutes total. Transfer steaks to a small shallow baking pan and roast in oven 5 minutes. Transfer to a cutting board and cool about 30 minutes. 
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                                            While steaks cool, cut carrots lengthwise into 42 (1-inch-wide) ribbons (less than 1/16 inch thick) with an adjustable-blade slicer or a vegetable peeler. 
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                                            Cook ribbons in a pot of boiling salted water (2 tablespoons salt for 4 quarts water), uncovered, until just tender, about 3 minutes. Transfer with a slotted spoon to an ice bath to stop cooking. Carefully drain, then pat ribbons dry. 
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                                            Whisk together basil, parsley, mustard, shallots, capers, and garlic in a small bowl, then add oil in a slow stream, whisking until emulsified. 
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                                            Trim fat and gristle from steaks, then cut each lengthwise into 3 (3/4- to 1-inch-wide) strips. 
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                                            Place a sushi mat with slats running crosswise or a 9-inch square of parchment paper on a work surface. Arrange 6 to 8 carrot ribbons side by side lengthwise, following slats and slightly overlapping, to form a 6-inch square. 
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                                            Spread about 1 tablespoon of mustard sauce evenly across bottom half of carrot square, then lay 1 strip of steak across carrots 1 inch from edge nearest you. Roll up carrots and beef tightly, using sushi mat as an aid. 
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                                            Transfer beef roll, seam side down, to a cutting board, then trim ends and cut crosswise into about 10 (1/2-inch) pieces. Make and cut 5 more rolls. Turn pieces upright to serve. 
 
                        
                    
                    Cooks’ note: Beef rolls can be assembled (but not cut into pieces) 1 day ahead and chilled, each roll wrapped tightly in plastic wrap. Cut rolls while cold, then bring to room temperature, covered with plastic wrap, before serving, about 30 minutes.