Baltimore peach cake

1 T  butter, softened
      1 c  Sugar
  2 1/2 c  flour
      3 t  baking powder
  1 1/2 c  Milk
    3/4 c  Sugar, mixed with...
      2 t  Cinnamon
      5    Large Peaches, peeled/sliced
      2 T  butter, melted
 
  Preheat oven to 350. With electric mixer, blend first
  five ingredients. Spread in greased and floured 15x10"
  jelly roll pan, or 13x9" plus one 8" cake pan.
  Sprinkle half of cinnamon/sugar mixture lightly over
  dough base. Arrange peach slices by rows on top of
  base. Sprinkle with remainder of cinnamon/sugar
  mixture and drizzle melter butter over all. Bake for
  25-30 minutes. (For thicker dough, omit 8" cake pan --
  use 13x9" pan only.)