Fill a large pot with water and salt it
Cover the pot with a lid, and bring water to a boil
Gradually add in the cornflour, stirring constantly
Reduce heat to low and allow the polenta to simmer slowly for 15 minutes
Stir often
In the meantime preheat the over to 360F
When the polenta is halfway cooked (the indicated 15 minutes), turn off the stove
Use bakeware such as ramekins or clay pots to bake polenta
Put a piece of butter on the bottom of the baking dish
Pour 2 tablespoons of polenta at the bottom
Cover polenta with ricotta and parmesan
Add more polenta on top of the cheese
Cover with lots of sherdded/grated parmesan
Insert the pots into the oven and bake for 15 minutes at 360F
If the parmesan doesn't go golden by when the time expires, turn on the fan and cook for an additional couple of minutes
Remove from oven and serve with pleasure