In a medium saucepan combine cornstarch, sugar, cherries, and vanilla.
Simmer 7-10 minutes until thickened.
Pour into greased 8x8 inch square pan or deep 9 inch pie plate.
In a separate bowl, combine brown sugar, flour, butter, and almonds.
Sprinkle evenly over cherries in pan.
Bake at 350 degrees for 25-30 minutes or until golden brown.
Prepare whipped cream by combining whipping cream and sugar in a chilled bowl.
Beat with chilled beaters on medium speed, gradually adding in amaretto, until soft peaks form.