Peel and cut the potatoes into chunks.
Put in a pot with cold water and bring to a boil.
When the water starts to boil, time it for 2 minutes and drain the potatoes.
Preheat the oven to 180 degrees Celsius.
Put the potatoes in a tray, making sure they are not touching each other.
Drizzle with oil and bake for 15-20 minutes.
Heat some oil in a pan and put the chopped onion and bacon in it.
Caramelise the onion over low heat, mixing from time to time to prevent sticking.
Meanwhile, put the garlic in a mortar and crush it with a pestle.
Add the oil and mix fast until you obtain a white, creamy paste.
Add 100ml of water over the garlic mixture, to loosen it up.
Take the pan with the onion and bacon off the heat, and mix in the sour cream and the smoked paprika.
Take the potatoes out of the oven and drizzle with the garlic mixture.
Add the onion and bacon, and mix gently, to cover all the potatoes.
Add the chopped cascaval cheese, and put the tray back in the oven for 5 more minutes.
Take the tray out of the oven and plate the potatoes.
Crumble the white cheese on top, and finish with chopped spring onions and a generous sprinkle of sea salt.
Enjoy hot!