Another recipe found while compiling the journal I explained here. This one certainly looked tricky, but isn't IF YOU OWN A FOOD PROCESSOR. Seriously, the first step of this recipe should say "1. Buy/borrow a food processor unless you want to slice 2kg of potatoes in 2mm slices by hand." That should be enough to convince most people.
In case that's not enough, I also used the food processor to slice 2 onions that were so strong I was crying while cooking them, and to grate 200g of cheddar.
That's not all the potatoes - I couldn't fit 2kg into the bowl of my food processor which is not a small food processor! Feel sorry for G - he had to peel all the potatoes.
Then it was simply a matter of layering potatoes, softened onions, chopped parsley (on hand, rather than purchasing the required sage) and grated cheddar. That's a lot of layering.
Quite frankly, it was the layering that took the most time (although without a food processor that would be a different story).
Then it took a fair amount of time in the oven (1 1/2 hours in total) before dinner. Totally worth it though.