Preheat oven to 375 degrees F.
In a small bowl, combine graham cracker crumbs and sugar and mix well. Add melted butter and mix until it is well blended.
Press into a 9 inch pie pan and bake for 7 minutes.
Cool completely.
In medium sauce pan, combine sugar and cornstarch. Add half and half and egg yolks and whisk until well combined. Bring to boil over medium heat, stirring constantly. Boil 1 minute and remove from heat. Stir in butter, and vanilla.
Pour ½ of the filling into the crust.
Top with sliced bananas to cover the filling.
Pour the rest of the filling over the bananas.
Cover with saran wrap directly on the filling itself to avoiding a sticky film on top.
Chill for at least 3 hours.
Top with another layer of sliced bananas.
In a medium mixing bow, beat whipping cream at high speed. Gradually add sugar and vanilla. Beat until stiff peaks form. You don't want them to be soft but you don't want them to become butter either.
Spread whipping cream over the top of the bananas and then garnish with a few more slices of bananas. Serve.
