Use high-quality ingredients. Splurge on thick-cut artisan bread, aged cheddar cheese, and freshly ground chuck for maximum flavor.
Take the onions slow and low. Cook them gently so they caramelize instead of just sweating. Sweet, jammy onions make all the difference.
Weigh out the patties. Forming consistent 6 oz patties ensures everything stacks up perfectly between the bread slices.
Toast the bread in the beef fat. Spreading mayo on the outside makes it extra crispy and delicious.
Spread it on thick. Don’t skimp on the zesty homemade spread – it adds a tangy flavor punch.
Melt the cheese twice. Quickly grill the finished sandwich to melt the cheese into gooey perfection.
