Separate the pound of ground beef into 4 patties.
Season with a little unrefined sea salt and pepper (to taste)
Cook the patties in the skillet until fully cooked (at least 160 degrees F)
Place the cooked patties on a plate and set aside
Drain any excess grease from skillet.
Add 1 tbsp butter
Add the garlic, mushrooms and onions.
Saute until onions are translucent
Add broth and arrowroot powder and whisk until the arrowroot is mixed thoroughly.
Allow mixture to simmer for 5 minutes.
Add the beef patties back into the broth mixture.
Allow to simmer in the mixture for 15 minutes (broth mixture will thicken into gravy in that time)