Beef Stroganoff

1 lb top sirloin steak, cut into strips;

6 tbsp butter, clarified butter or other paleo cooking fat, divided;

1 medium onion, chopped;

8 oz mushrooms, sliced;

2 cloves garlic, minced;

1/4 cup dry white wine;

1 cup beef stock;

1 cup coconut milk;

1 tbsp fresh parsley, finely chopped;

Sea salt and freshly ground black pepper to taste;