The Food Wishes polenta video seems totally reliable. I have done many times now with no problems.
Ingredients for 4 Portions:
- 4 cups water or broth
- 1 cup polenta (you can use regular corn meal, but it’s not as easy to work with, and the texture isn’t as interesting)
- 1 tsp salt
- 2 tbsp butter
- 1/2 cup finely grated Parmigiano-Reggiano
Key point is to whisk the polenta into the water and add in a continuous stream. Also butter and Parmesan are added at the end and the dish allowed to rest for five minutes. Otherwise check the video.