Here's the recipe: http://outlanderkitchen.com/2014/09/17/cranachan-outlander-starz-episode-107-wedding/
I was going to make a chicken and mushroom pie also a Scottish recipe but our kitchen is in the middle of getting all the appliances changed....so that can wait for another day.
P.S. Made it....and ....umm......not good. I'm not sure why. Maybe I did something wrong. Maybe I under-whipped it? Over-whipped it? Or maybe I should have just used Cool Whip? But definitely prettier than it tastes.