Mix you butter, brussel sprouts, onions, and salt together.

Heat a baking sheet in the oven to 450F. Once your oven is fully heated, add your brussel sprouts to the hot sheet. Cook for 25 minutes, at the 10 minute mark, remove from the oven and pour the cheese over the brussel sprouts.

You want the brussel sprouts to brown and burn up slightly. This will help the sugars come out and give the food a great flavor.

Serve and Enjoy!