My mother use to make this cake for Christmas or Easter..As the years have gone by ,she now use's a box cake mix instead scratch cake ..Frankly ,there is no difference in taste...You can use fresh ,frozen or caned peaches ..I use the canned freestone peaches ,well drained..
Prepare cake according to directions on the box ,using two(2)8-inch cake pans.Cool and split each layer using a large knife .
Combine sugar and corn starch in a saucepan.Add chopped peaches and water;cook over medium heat untill smooth,stirring constantly.Cool mixture completely..Combine whipping cream and powered sugar in a medium mixing bowl and beat untill stiff peaks form.
Spoon 1/3 of peach filling over split layers of cake ;spread 1/3 cup of sour cream over filling .Repeat procedure with remaning layers of cake.Frost with sweetened whipped cream and garnish with peach slices...
PERSONAL NOTE:::::I have used Cool Whip ,instead of the Whipping Cream .....P.S.Don't tell my Momma I got lazy...I like for this cake to sit in the ice box a while covered