What is a reliable firm polenta recipe that you recommend?

A reliable firm polenta recipe that I recommend is to bring 4 cups of water to a boil, slowly whisk in 1 cup of polenta, reduce heat to low, and cook for 30-40 minutes, stirring occasionally. Once the polenta is thick and creamy, stir in 1/2 cup of grated Parmesan cheese and season with salt and pepper to taste. Allow the polenta to cool and firm up before serving.