Potato monument in Poland. I've visited it a few times:https://upload.wikimedia.org/wikipedia/commons/a/a6/Biesiekierz_Potato_monument_2008-07.jpg
Quarter potatoes and boil for around 18 minutes, or until the outside is just start to soften and break apart. Strain, mix with a couple tablespoons of beef/bacon fat or vegetable oil.Make sure you rough them up so that you get a creamy, particle-rich coating on the exteriors mixed in with the oil.Bake at 375 (on parchment-lined pan) for about 45 minutes, turning once.
They're red, they're white, they're brown They get that way underground There can't be much to do So now they have blue ones too