I made this tonight on a whim--sooooooo good. When I "sampled" the filling as I was cooking, it was so good I went and gave a spoonful to everyone else in the house at the time. Absolutely divine, and relatively easy. I'm in the US, so if anyone's curious, it's a 350 degree oven and about 1 1/4 cups of heavy cream. Also, my pudding mixes were about 96 g, but I just tossed two in anyways, no problem. The two tablespoons of boiling water wasn't enough for me, so I added another two, but then that was too much, so I added a heaping tablespoon of powdered sugar again, and finally managed to get it right. Only thing we discussed changing after eating it was not putting the second sheet of puff pastry flat side up--we thought it might look prettier with the puffed side face up. But honestly, when it tastes as good as this did, it doesn't matter one bit!
I have made this for a couple of years now, but had lost my original hard copy in a recent move. I can vouch for it's deliciousness :-) I use packaged vanilla frosting to put on top, and then put passion fruit pulp on top of that.
What can I say - easy to do and addictive - I put lemon icing on top and it looked very professional and we ate the lot !!! I will certainly do it again for a party or special dinner so my thanks to Wendy.