Here is a really simple and tasty way to prepare it:
1 small hokkaido, 1-2 small onions, 4-5 cloves of garlic, 1tsp sambal olek or fresh chili, ½-1 l of water + vegetable stock (depending on the size of the hokkaido).
Peel the pumpkin, onions and garlic. Add the rest and cook for about 20 min. Blend and add creme fraiche or cream (optional) and serve with toasted pumpkin seeds e.g.