First, thoroughly wash the potatoes. There's no need to peel them, but feel free to peel them if you prefer!
Slice the potatoes into evenly sized rounds by hand or with a mandoline (so they cook evenly) and place them into the Varoma® dish and tray. Pro tip: Place the butterfly whisk in the Varoma® so enough steam vents stay open and the steam can circulate freely.
1 tsp salt, 500 g water
Next, add 500 g of water to the mixing bowl, sprinkle the potatoes with 1 tsp salt, set the Varoma® in place, and pre-cook for 15 min / Varoma® / Speed 2.
During this time, preheat your oven to 200°C top/bottom heat.
After pre-cooking, transfer the potatoes into a casserole dish and empty the mixing bowl.
300 g sour cream, 200 g herb crème fraîche, 100 g milk, 200 g water, 2 tsp vegetable broth, 1 tsp salt, 3 Prisen black pepper
For the sauce, add all sauce ingredients to the emptied mixing bowl and bring to a boil for 5 min / 100 °C / Speed 2.
Pour the hot sauce right over the potatoes and toss gently to combine.
75 g diced ham, 150 g shredded cheese
Scatter the diced ham over the top and finish with a generous layer of shredded cheese.
Bake the potato casserole on the bottom rack for 45 minutes.