Clean squash (remove seeds but leave the skin) and cut into 4 or 5 large slices, place on a cookie sheet, cut side up and bake for approximately 30 minutes or until tender. Remove from oven let cool enough to handle, remove the skin and cut into small cubes.
In a medium to large pan add the olive oil and chopped onion, cook on medium heat until the onion becomes transparent then add the squash and salt, with a potato masher mash coarsely or finely the onion and squash (I mashed very coarsely because we like small cubes of squash in our risotto). Then add the rice, cook for 1 minute, add the broth one cup (250 grams) at a time, wait until the rice absorbs the liquid (but is not completely dry) before adding another cup, stirring almost constantly.
When the rice is cooked (add a little broth if needed). Remember you want to leave a little liquid, the texture must be creamy and not dry. Turn off heat and add the butter, cream and freshly grated parmesan cheese, stir to combine. Top with extra parmesan if desired. Serve immediately, Enjoy!
Notes
How to store pumpkin risotto
Homemade pumpkin risotto is best when it's made. When risotto cools, it tightens up and is less creamy and more sticky. If you wish you could add some milk or broth and heat through and serve. Or you could use the leftover to make rice balls.
How to serve the risotto
I serve it as a main dish because it's very rich and filling. Adding a grilled or roasted vegetable is a good side dish or some crusty bread.