Combine egg yolks and sugar in the top of a double boiler, over simmering water using a whisk to mix. Reduce heat to low, and cook for about 10 minutes, stirring constantly with a wire whisk. This is your sabayon, remove from the heat and continue to whip yolks until thick and lemon-colored.
Allow the sabayon to cool briefly before mixing in mascarpone. Mix in the mascarpone to whipped yolks until well combined. Then mix in the salt, vanilla, almond extract and pistachio cream. Mix until smooth.
In a separate bowl, using an electric mixer whip cream to stiff peaks. Then, fold the whipped cream into the mascarpone sabayon mixture and set aside.
Mix the espresso coffee with the coffee liquor in a large bowl. Lightly dip the ladyfingers into the coffee mixture, do not soak them! This way the lady fingers still have a bit of cookie texture and don't turn into mush.
Arrange the ladyfingers in the bottom of a 9x13 baking pan and then spoon one third of the mascarpone pistachio cream filling over the ladyfingers. Repeat process with another layer of ladyfingers. Finish the tiramisu with the last of the cream filling.
Drizzle additional pistachio cream over the top of the tiramisu and garnish the edges with crushed pistachios.
Refrigerate for 4 hours, overnight for best results. Once you're ready to serve the tiramisu, it'll be firm.