Beat the butter and sugar using the paddle attachment or electric mixer until light and fluffy.
Mix in the egg yolk and vanilla extract.
Add the baking powder to the flour then gradually mix it into the butter mixture.
Mix until you have a smooth dough.
Divide the dough into 2/3 and 1/3 parts. Spread the large part over the bottom of your pan, and use a fork to prick the top. Flatten the smaller part into 1/4 inch disk.
Bake for 15-18 minutes, until the crust is lightly golden.
Make the filling
Whip the cream cheese and Geek yogurt until fully incorporated.
Pour in the heavy cream and vanilla bean, then sift over the powdered sugar and instant pudding.
Whip the mixture until it rices stiff peaks, and you have a smooth mixture.
Assembling
Once the dough has cooled, top it with the cream filling and use an offset spatula to smooth it.
Using your fingers or a fork, break the shortbread disk into crumbs.
Sprinkle it over the top of the cake and refrigerate for four hours before serving.
Notes
Store the cake in the refrigerator for up to five days.
To freeze, wrap the can in the pan with plastic wrap and aluminum foil and freeze for up to eight weeks. When ready, place the cake in the refrigerator overnight.
Replace the greek yogurt with sour cream as an option.
Use 8, or 9 inch springform pan. Another option is to use a Pirex pan.