Finely chop the onion.
Add olive oil to the pan and sauté the onion.
Add rice and sauté together.
Pour in white wine and let the alcohol evaporate.
Gradually add vegetable stock or water while stirring and cooking until the rice is done.
When the rice is cooked just right, add heavy cream and mix.
Add Parmesan cheese to achieve the desired thickness.
Season with salt and pepper.