Shred Brussels sprouts using large slicing disc in food processor.
Set aside.
In a large pan over medium heat, add the butter and avocado oil.
Add Brussels sprouts and garlic powder.
Stir.
Add salt and pepper.
Stir and continue to cook for 4 – 5 minutes.
Should become tender but still stay bright green.
Add balsamic vinegar.
Stir and taste.
You may want to add more salt and pepper.
Serve hot.