For filling, whisk sugar, corn flour, cocoa powder, spices, and salt in heavy medium saucepan to combine.
Whisk in egg yolks to form thick paste. Gradually whisk in milk, then whisk over medium-high heat until mixture thickens and boils 1 minute.
Remove from heat. Add chocolate and whisk until smooth. Whisk in bourbon and vanilla.
Cool 5 minutes, whisking occasionally.
Pour filling over strawberries until level with the top edge of the crust (you may not use all the filling).
Chill until set, at least 2 hours and up to 1 day.
Top with fresh whipped cream and more strawberries and enjoy!