To make crust, cream butter, sugar and vanilla. Blend in flour and salt. Spread mixture on bottom and sides of a 9-inch spring form pan. Boil 10 inches from coil for 5 minutes so crust will not get soggy.
To make filling, combine softened cream cheese, egg and sugar. Stir in vanilla; mix well.
Pour into pastry lined pan.
To make topping, combine sugar and cinnamon. Mix with apples. Spoon mixture over cream cheese layer; sprinkle with almonds.
Bake at 450 degrees for 10 minutes. Reduce heat to 400 degrees and continue baking for 25 minutes longer. Cool on wire rack. Remove ring from pan. Bake and serve same day if possible.