Preheat the oven to 180 degrees. coat a shallow baking dish with vegetable oil.
Get a large pan with just enough boiling water to cover the potatoes (boil for about 25 minutes on a medium heat) then drain - but whilst that is boiling away - cook the sauce !
Coat a heavy based frying pan with oil. Add garlic, onion for about 4-5 minutes then add the beer and caraway seeds. Bring to boil, then simmer on low heat for 2 minutes.
Separately blend in the flour and milk - then add milk mixture to the frying pan - along with dill and horopito seasoning.
Cook, until the sauce boils and thickens - then take off the heat.
Right back to the potatoes... drain the water.. slice them thinly into the baking tray. Pour half the milk mixture on top - covering the potatoes and then sprinkle half of the cheese then repeat (so you have 2 layers of potatoes and two layers of milk mixture with cheese on top!)
Top with paprika - (that you bought and wonder, when you are ever going to use it again - but you will)
Place in the oven at 180 degrees for about 30 minutes. You should be on your second beer by now and serve immediately.