In a large mixing bowl combine the panko, egg, milk, onion, garlic, worcestershire and seasonings. Mix to combine and let sit for 2 minutes to absorb the liquid and create a kind of paste. Add the ground turkey and mix lightly until just combined.
Divide mixture into 4 even portions and using slightly wet hands, form into even patties. Chill patties in the fridge until ready to cook.
Preheat your grill or heat a heavy cast iron pan over medium heat and cook burgers until deeply charred, cooked through and a thermometer reads 165℉. About 10-12 minutes. Remove burgers and let rest for 4-5 minutes.
Serve with preferred toppings and condiments.
Notes
These turkey burgers are best when freshly made, but can be stored in an airtight container in the fridge for up to 4 days and reheated in the oven, at 350℉ for around 10 minutes until heated through. Uncooked patties can be stored in the fridge wrapped tightly for 2 days, or in the freezer for up to 3 months.
Using a leaner ground turkey will create a dryer burger that is more likely to fall apart. For the best turkey burger, use 93% lean meat.
The addition of the grated onion and garlic helps to add more moisture to the burger, but you could substitute the fresh for 1 teaspoon each of garlic and onion powder.
Using moistened hands when making the patties will help to keep the mixture from sticking to your hands.
Panko helps to hold the burger together. You can use almond flour, but your burgers will be more delicate.