Beat egg in a medium bowl. Add bread crumbs and whisk until completely mixed. Add ground turkey, Worcestershire sauce, onion powder, garlic powder, parsley, salt, pepper and bacon fat. Use hands or a large spoon to mix together until all ingredients are combined. Shape into 5 or 6 even sized patties. Refrigerate for 15 minutes.
Remove burgers from refrigerator, and let sit for additional 15 minutes. Heat vegetable oil in a skillet or griddle over medium-high heat. Once the oil is hot, cook the patties on each side until an internal temperate of 165 degrees is reached. This should take approximately 5 minutes on each side.
Serve warm on buns with toppings of choice. Recommend *brioche buns, mayo, dijon mustard, gouda cheese, lettuce, tomato and grilled onion.