Polenta with Goat Cheese & Fresh Sage

In a medium heavy-based pot, bring the water to a rolling boil. Add the salt and butter. Slowly whisk in the polenta. Continue to cook over high heat, whisking constantly, about 5 minutes. Reduce the heat to medium-low and cook for another 15 minutes, whisking frequently. The polenta should be thick and creamy. Remove from the heat and stir in the goat cheese and sage. Taste and add more salt, if needed. Pour the polenta into a warm serving bowl and let stand for a few minutes, allowing it to firm up slightly before serving.