1 onion

1 lb grassfed beef

Couple pinches cumin

Salt and fresh ground black pepper to taste

Sautee onion in coconut oil, lard, or butter.  Combine all ingredients in a bowl, including sauteed onions.  Form into 1/4 lb or 1/2 lb patties. 

To Grill:  Preheat grill on high for 10 minutes (temp close to 500).  Put burgers on grill, about 5 minutes first side and 3 minutes second side.  Vary time to change doneness.

In skillet: Preheat oven to 500.  Put cast iron skillet in oven to preheat.  When pan is very hot, place burger in skillet, turn oven down to 350.  Cook for 3 minutes per side.  Change time to effect doneness.