Step 1Combine the half-and-half with salt in a deep saucepan. Add 3 cups of water and bring to a rolling boil. Slowly pour in the grits while whisking constantly. Cook over medium heat, whisking frequently, until the grits are soft and smooth, about 20 minutes.
Step 2Season with pepper and cayenne to taste. Add the cheese of your choice and stir until melted. Stir in herbs and more salt if needed. Serve hot.