Serves8
                    
                
                
                    
                        
                            - Active time:45 min
 
                        
                            - Start to finish:4 hr (includes cooling)
 
                        
                    
                
             
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              November 2007
            
          
          
      
  
                
                
            
            
            
                Caramel and tart Granny Smiths that turn almost saucy breathe new style into upside-down cake.
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            2
                                            
                                            sticks unsalted butter, well softened, divided
                                            
                                        
 
                                    
                                        - 
                                            1 1/2
                                            cups
                                            sugar, divided
                                            
                                        
 
                                    
                                        - 
                                            2
                                            lb
                                            tart apples such as Granny Smith, Northern Spy, or Greening, peeled, halved lengthwise, and cored
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            teaspoon
                                            salt, divided
                                            
                                        
 
                                    
                                        - 
                                            1 1/2
                                            cups
                                            all-purpose flour
                                            
                                        
 
                                    
                                        - 
                                            1 1/2
                                            teaspoons
                                            baking powder
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            baking soda
                                            
                                        
 
                                    
                                        - 
                                            3/4
                                            teaspoon
                                            ground allspice
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            cinnamon
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            teaspoon
                                            grated nutmeg
                                            
                                        
 
                                    
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                                        - 
                                            1 1/2
                                            cups
                                            walnuts (5 oz), coarsely chopped, toasted, and cooled completely
                                            
                                        
 
                                    
                                        - 
                                            2
                                            
                                            large eggs
                                            
                                        
 
                                    
                                        - 
                                            1
                                            teaspoon
                                            pure vanilla extract
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            teaspoon
                                            pure almond extract
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            apple jelly
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
                
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
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Preheat oven to 350°F with rack in middle.
                                         
                                    
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Butter pan and fit a round of parchment paper in bottom. Butter parchment, then flour pan.
                                         
                                    
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Spread 1/2 stick butter thickly on bottom of a 12-inch heavy skillet and sprinkle 1/2 cup sugar evenly over butter. Arrange apples, cut sides down, over sugar and sprinkle with 1/4 teaspoon salt. Cook over medium heat, turning apples occasionally, until sugar is caramelized and apples are tender and golden brown, 15 to 20 minutes.
                                         
                                    
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Arrange apples, cut sides down, in concentric circles in bottom of cake pan, then pour over any caramel from skillet.
                                         
                                    
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Whisk together flour, baking powder, baking soda, allspice, cinnamon, nutmeg, and remaining 1/2 teaspoon salt.
                                         
                                    
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Pulse walnuts with remaining cup sugar in a food processor until finely ground. 
                                         
                                    
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Beat remaining 1 1/2 sticks butter in a bowl with an electric mixer until creamy, about 3 minutes. Add walnut sugar and beat until just combined. Add eggs 1 at a time, beating well after each addition, then beat in extracts. At low speed, mix in flour mixture until just combined (batter will be thick). 
                                         
                                    
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Dollop batter over apples and spread evenly. Bake until torte just begins to pull away from side of pan and a wooden pick inserted in center comes out clean, 45 to 50 minutes. Cool torte in pan on a rack 30 minutes. Put rack over torte, then invert torte onto rack.
                                         
                                    
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Melt apple jelly in a small heavy saucepan over low heat, stirring. Brush apples generously with jelly, then cool torte completely, 1 to 1 1/2 hours.
                                         
                                    
                                
                             
                        
                    
                    Cooks’ note: Torte is best the day it is baked but can be made 1 day ahead and kept, covered with foil or in an airtight container, at room temperature.