Umami Wagyu Burgers with Smoky Fried Mushrooms

1. Use a coffee or spice grinder to make umami seasoning by pulsing the dried mushrooms a couple of times then adding a couple tablespoons of salt and the peppercorns, and pulsing until the mushrooms are nearly powdered but the peppercorns are still intact. Then mix the with the remaining salt.
2. Keeping the meat as cold as possible, fashion the ground wagyu into patties using the Napoleon Gourmet Burger Press Kit. Brush the inside and the press itself with cold water, then use it to form patties. Place the patties onto a waxed paper covered surface. Once all patties are made, place them into the fridge or freezer to set up and rest for at least 30 minutes.
3. While the burgers are resting, prepare your ingredients. Clean the produce and slice the mushrooms in a manner that pleases you. To make the burger sauce, mince the pickles, then mix them with the ketchup, mayo, and mustard. Set aside in the fridge until needed. 
4. Place your griddle down and then preheat your barbecue with the burners under the griddle set to medium-high, leaving the others off. If using a charcoal barbecue, concentrate the coals to one side of the barbecue and place the griddle over the hot side. 
5. Bring the burgers, seasoning, mushrooms, and cheese out to the grill. Season the tops of the burgers with the seasoning, then place that side down. Season the unseasoned side of the hamburgers. Sear the burgers on the griddle on both sides until a deep crust forms, then move them to the cool side of the grill to finish. Fry the mushrooms in the beef fat that is rendered from the hamburgers. Optionally, add some wood chips or a chunk to add extra flavor. Close the lid and allow the burgers to finish and the mushrooms to color. Just before you want to pull them off, add the optional cheese to the burger patties to melt. 
6. Finish the beef to your preferred temperature, however, ground beef is recommended to be cooked to 165°F (74°C). Feel free to toast the burger buns at this time as well. 
7. Assemble your burgers with the burger sauce, mushrooms atop the cheese, and your favorite additional toppings.  

Enjoy the ultimate burger experience! Grill up our Umami Wagyu Burgers with Smoky Fried Mushrooms and savor the intense flavors of the season. What goes in or on your ultimate burger? Share your hamburger recipes, ideas, and photos on our social pages like Facebook and TikTok, using the hashtags #NapoleonEats and #NapoleonGrill.

Happy Grilling!