Serves6
                    
                
                
                    
                        
                            - Active Time:1 1/4 hr
- Start to Finish:1 1/4 hr
 
            
                
                    
                    Though folding the shrimp into the purée is traditional in Brazil, we placed it on top for a prettier presentation.
                
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              January 2007
            
          
          
      
  
                
                
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            For yuca purée
                            
                            
                                
                                    
                                        - 
                                            1
                                            
                                            (16- to 18-oz) bag frozen peeled yuca*, not thawed
                                            
                                        
- 
                                            4
                                            cups
                                            water
                                            
                                        
- 
                                            1
                                            
                                            medium onion, chopped
                                            
                                        
- 
                                            1
                                            
                                            garlic clove, chopped
                                            
                                        
- 
                                            1 1/2
                                            teaspoons
                                            salt
                                            
                                        
- 
                                            1
                                            cup
                                            well-stirred canned unsweetened coconut milk (8 fl oz)
                                            
                                        
 
                    
                        
                            For shrimp
                            
                            
                                
                                    
                                        - 
                                            2
                                            lbs
                                            large shrimp in shell (21 to 25 per lb), peeled and deveined, reserving shells
                                            
                                        
- 
                                            3
                                            cups
                                            water
                                            
                                        
- 
                                            1 1/2
                                            teaspoons
                                            salt
                                            
                                        
- 
                                            1
                                            
                                            
                                            green bell pepper, chopped
                                        
- 
                                            1/4
                                            cup
                                            extra-virgin olive oil
                                            
                                        
- 
                                            1
                                            
                                            medium onion, chopped
                                            
                                        
- 
                                            1
                                            
                                            garlic clove, finely chopped
                                            
                                        
- 
                                            1
                                            lb
                                            fresh tomatoes, chopped
                                            
                                        
- 
                                            4
                                            
                                            bottled red malagueta peppers or 1- to 2-inch fresh red Thai chiles* (optional)
                                            
                                        
- 
                                            1/2
                                            cup
                                            chopped fresh cilantro
                                            
                                        
- 
                                            2
                                            tablespoons
                                            dendê oil** (optional)
                                            
                                        
 
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                Make yuca purée:
                                
                                
                                    
                                        - 
                                            
                                            Bring yuca, water, onion, garlic, and 1/2 teaspoon salt to a boil in a 3-quart saucepan, then reduce heat and simmer, uncovered, until yuca is very tender, 10 to 15 minutes. 
- 
                                            
                                            Drain in a colander. When yuca is cool enough to handle, remove any stringy fibrous cores and transfer mixture to a food processor. Add coconut milk and remaining teaspoon salt and purée until very smooth, about 1 minute. Transfer to a bowl and keep warm, covered, until ready to serve. 
 
                        
                            
                                Make shrimp broth:
                                
                                
                                    
                                        - 
                                            
                                            While yuca cooks, simmer shrimp shells in water with 1/2 teaspoon salt in a 1 1/2- to 2-quart saucepan, uncovered, until liquid is reduced to about 2 cups, about 20 minutes. Pour shrimp broth through a sieve into a bowl, discarding shells. 
- 
                                            
                                            Purée green bell pepper in cleaned food processor until smooth, about 1 minute. 
- 
                                            
                                            Heat olive oil in a 12-inch heavy skillet over moderately high heat until hot but not smoking, then add pepper purée, onion, garlic, and 1/2 teaspoon salt (mixture will splatter) and sauté, stirring occasionally, until mixture starts to brown, 6 to 10 minutes. Add tomatoes, malagueta peppers or Thai chiles (if using), and 1 cup shrimp broth (reserve remainder for another use) and simmer, stirring occasionally, until liquid is reduced by half, about 6 minutes. 
- 
                                            
                                            Toss shrimp with remaining 1/2 teaspoon salt and add to tomato mixture. Cook, stirring frequently, until shrimp are just cooked through, 3 to 4 minutes. 
- 
                                            
                                            Remove from heat and stir in cilantro and dendê oil (if using). Serve shrimp over yuca purée. 
 
                        
                    
                    *Available at some Latino markets.
**Available at some Latino markets and 
sendexnet.com.