Mix beef + brisket together.
Add FlavorGod, garlic, plain mayo, and mix together.
Form into patties (makes about 8)
Create little pockets in the patties and fill with butter, then form back into patties.
In a cast iron pan (preferably), heat up 2 tbsp olive oil over medium-low heat.
Add onions and let soften (not fry) for about two minutes until you can easily separate all the onions.
Add 1 tbsp of water to the pan and mix up with your onions.
Pile your onions in the corner of your pan and let cook.
Meanwhile, add your burgers to the pan (as many as will fit – I did two at a time) and cook on medium-low heat (about 20 minutes).
Flatten your burgers continually with your spatula so they don’t turn into hockey pucks.
When your burgers are browned on one side, flip and add 1 tbsp of ghee.
Shuffle your onions throughout this process, they should stay moist due to the hamburger grease.
When your first set of burgers are cooked through (160 degrees), your onions may be done too.
If they’re not, leave them in the pan and cook with the next set.
If they are, remove and set aside.
If you want, top the burgers with cheese and let melt.
Otherwise, remove and start your next set of burgers.