Peel and dice the onion. Wash Hokkaido very well and cut in half. Then scrape out the seeds with a spoon and cut into 2-3 cm cubes. Peel and wash the potatoes and cut into pieces the same size as pumpkin.
Sauté the onions in a little fat until translucent. Deglaze with a little water. Add the Hokkaido and potatoes. Top up with enough water to cover about two-thirds of the pumpkin and potato cubes. Add the vegetable stock, stir, put the lid on and cook over medium heat for about 15-20 minutes. Don`t cook mushy!
Remove from heat and mash with the potato masher. Possibly add water if it is too thick. I like it when there are still a few pieces left, so I don`t mash it.
Add the bacon and bring to the boil again. Season to taste with salt and pepper.