Tips from "Joy of Cooking"
      
        - A 9-inch fruit or berry pie needs about 4 cups of fresh fruit or 3 
          cups of cooked fruit.
        
- Each type of fruit requires its own quota of sweetening.  For example, 4 cups 
          of gooseberries need about 1 3/4 cups of sugar, while blueberries may 
          need no more than 1/2 cup plus lemon juice to heighten the flavor.
        
- Acidic fruits should be thickened with tapioca starch, cornstarch or arrowroot 
          starch because the acidity of the fruit may neutralize the thickening 
          power of the flour.
Instructions:
        
          - Prepare enough dough for two pie crusts that will make up the bottom and top of the pie:
            
          
- Line a 9-inch pie pan with 1 pie dough.
          
- Prepare by picking over and hulling:
             
            
- Combine: 
            
              - 2/3 to 1 cup or more sugar
              
- 1/4 cup all-purpose flour
              
- 1 1/2 tablespoons lemon juice or 1/2 teaspoon 
            cinnamon
             
 
- If the fruit is very juicy and ripe, add:
            - 2 teaspoons quick-cooking tapioca
            
 
- Sprinkle the flour mixture over the berries and stir gently until 
            well blended. Let stand for 15 minutes. Preheat oven to 450°F (230°C).
          
- Turn the fruit into the pie shell. Dot with:
            - 1 to 2 tablespoons butter
              
 
- Cover the pie with a well-pricked top or with a lattice. Bake the 
            pie at 450°F (230°C) for 10 minutes. Reduce the heat to 350°F (175°C) and 
            bake 35 to 40 minutes or until golden brown.