I didn't alter the recipe much to adjust from 6 tarts to one large one. I don't remember how long I let the crust bake, but I believe it was 5 or 10 minutes longer than the recipe called for with the mini tarts. Otherwise, I think the recipe easily adjusts to one 9 inch tart. I would recommend adding a thicker chocolate layer (maybe making one and a half or even doubling the layer). I love chocolate, so that's just my preference. The coconut/white chocolate ganache layer was amazing! It tastes just like the almond joy filling. I even loved the white chocolate ganache before adding the coconut.
Great recipe for anyone who loves almond joys :)
Check out the other Almond Joy Tarts from my fellow bakers at Club:Baked: http://club-baked.blogspot.com/2011/12/bakers-links-to-almond-joy-tart.html#comment-form