Heat olive oil in a large pan and add crushed garlic.
Let the oil infuse with flavor.
Add the quartered onion and sauté briefly, just to release fragrance.
Sprinkle with a little rosemary or herb of choice.
Add the cubed pumpkin and potatoes, and let them roast in the pan for 5 minutes.
Pour in water, add broth cubes, salt, and pepper. Bring to a boil and simmer until vegetables are tender.
Let the mixture cool slightly, then blend with a hand immersion blender until completely smooth and velvety.
Serve immediately, or dress with toppings: a spoon of béchamel, whipped cream, crumbled feta, fried bacon cubes, or a drizzle of olive oil. Roasted bread makes a perfect side.