Peach Cream Pie

1 cup white sugar
1/3 cup butter or margarine
1/3 cup all-purpose flour
1 egg
1 teaspoon vanilla extract
2 - 3 cups fresh, peeled and sliced peaches
1 - 9 inch pie crust
                   
1. Line a 9 inch pie pan with crust. Place peaches in the
   unbaked pie shell. 
2. Cream together the sugar and butter or margarine. Add
   the egg, flour, and vanilla; mix together completely.
   Spread this mixture over the top of the peaches. 
3. Bake at 300 degrees F for 1 hour.