It's everything you already know & love about our Fried Onion Burger - with a kick! Resist your urges to add condiments to this burger, as it truly doesn't need anything! Keep in mind this advice is coming from people who typically love a burger with ketchup and mayo. [2] 3 oz Wagyu Smash Patties, Paper Thin Fried Onions & Jalapeños, and Cooper Cheese on a Heidelberg Brioche Roll. Comes with a side of our House-made Dill Pickles. Worried about the spice level? Don't sweat it! The way the jalapeños are fried in the beef fat & onions really mellows out the spice profile of this burger - creating a flavor profile that's truly next-level. While technically not Gluten Free, many of our Gluten Sensitive customers are able to enjoy our Heidelberg Brioche Rolls thanks to their long fermentation process and super clean ingredients.