Serves4
                    
                
                
                    
                        
                            - Active time:40 min
 
                        
                            - Start to finish:1 1/2 hr
 
                        
                    
                
             
            
                
                    
                    PETER MERRIMAN, MERRIMAN'S, WAIMEA, HAWAII
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              January 2009
            
          
          
      
  
                
                
            
            
            
                Watch a clip of this Diary of a Foodie episode and view its accompanying recipes.  Plus, explore all episodes and more recipes from the show. 
            
            
            
            
            
                
                    
                    
                    
                        
                            For marinade
                            
                            
                                
                                    
                                        - 
                                            1/2
                                            cup
                                            rice vinegar (not seasoned)
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            frozen orange juice concentrate, thawed
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            soy sauce
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            ground ginger
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            cup
                                            sugar
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            cup
                                            chopped scallions
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            fresh lemon juice
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            minced garlic
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            Sriracha (Southeast Asian chile sauce)
                                            
                                        
 
                                    
                                
                            
                         
                    
                        
                            For fish
                            
                            
                                
                                    
                                        - 
                                            4 (6-oz) pieces
                                            
                                            mahimahi fillet (1 1/2 inches thick)
                                            
                                        
 
                                    
                                        - 
                                            1/3
                                            cup
                                            cornstarch
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            olive oil
                                            
                                        
 
                                    
                                
                            
                         
                    
                        
                            For sauce
                            
                            
                                
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            cornstarch
                                            
                                        
 
                                    
                                        - 
                                            1
                                            tablespoon
                                            water
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            cup
                                            fresh orange juice
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            soy sauce
                                            
                                        
 
                                    
                                        - 
                                            2
                                            tablespoons
                                            rice vinegar (not seasoned)
                                            
                                        
 
                                    
                                        - 
                                            1
                                            
                                            garlic clove, minced
                                            
                                        
 
                                    
                                        - 
                                            1
                                            teaspoon
                                            very fine shreds of peeled ginger
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            unsalted butter, softened slightly
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
                
            
            
            
            
                
                    
                    
                    
                        
                            
                                Marinate fish:
                                
                                
                                    
                                        - 
                                            
                                            
Stir together marinade ingredients in a 2-qt glass or ceramic baking dish just large enough to hold fish in 1 layer. Add mahimahi, turning to coat, and marinate, chilled, 1 hour.
                                         
                                    
                                
                             
                        
                            
                                Cook fish:
                                
                                
                                    
                                        - 
                                            
                                            
 Preheat oven to 400°F with rack in middle.
                                         
                                    
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Remove fish from marinade (discard marinade) and pat dry. Dredge in cornstarch, knocking off excess. Heat oil in a 12-inch heavy skillet over medium heat until it shimmers, then sear mahimahi, turning once, until golden, 2 to 4 minutes total. Transfer, skin side down, to a 13- by 9-inch baking dish (reserve skillet) and roast in oven until just cooked through, about 8 minutes.  
                                         
                                    
                                
                             
                        
                            
                                Make sauce:
                                
                                
                                    
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Stir cornstarch into water in a cup or small bowl and set aside.
                                         
                                    
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Pour off oil from skillet and wipe skillet clean, then add orange juice and boil until reduced to about 1/2 cup, about 1 minute. Add soy sauce, vinegar, garlic, and ginger and simmer 1 minute. Stir cornstarch mixture and whisk into sauce, then simmer, whisking, 1 minute. Whisk in butter until incorporated. Pour sauce over fish.