Combine cake mix and butter with pastry blender.
Press into 9" x 13" greased cake pan.
Bake 10 minutes at 350 degrees F.
Spread peaches over baked crust.
Sprinkle with combined sugar and spice.
Combine sour cream and egg.
Drizzle over peaches (it will not cover them completetely).
Bake at 350 degrees F for 45 minutes.
Refrigerate any leftovers