Quartz's quick & dirty Gravelax:
A deep tray.
9" plus or minus of the centre of a side of salmon. You want the widest, thickest piece. As big as you can manage. Size it to place in your tray.
1 pack dill. 2 packs for a really big piece or if you're doing both sides in one go.
4+ spoonfuls of salt, depending upon the size of the piece(s), and a like quantity of sugar.
Mix the salt and sugar. Coat the salmon liberally on all sides. Lay a layer of the mix in the dish.
Chop your dill quite finely and coat the pink side of the salmon with most of it.
Lay the salmon pink side down in the dish and sprinkle more salt & sugar mix and the rest of the dill.
Cover with clingfilm.
Put some weights on top.
Put in fridge and wait 3 days.
After 3 days remove from fridge and clean. Wash off the excess salt, sugar, and dill. Slice thinly horizontally or at a shallow angle and serve. Dill mayo is optional.
There's other stuff you can add to the salt & sugar mix, but that's the basics.