Prep: 1. Preheat oven to 350. 2. Chop: marjoram and thyme. 3. Grate cheese. 4. Coat shallow baking dish with butter. Make: 1. Bring 4 1/2 cups water with salt to boil in saucepan. Slowly sprinkle in cornmeal while whisking. 2. Continue to whisk over medium heat until thick, about 5 min. 3. Remove pan from heat and stir in marjoram, and half of cheese. 4. Spread polenta evenly in dish and sprinkle remaining cheese on top. 5. Bake until polenta is bubbling and edges brown, about 1 hour.
Gruyere cheese tastes amazing, but it can be pretty pricy. For a cheaper option, feel free to replace with swiss or a Swiss/Parmesan combo!