As someone who loves trying out unique burger deals around Montreal, I found the Vayla app to be an absolute game-changer for accessing exclusive offers like the free Psycho Patty at Patty Slaps. The process is straightforward—download the app, activate your Vayla membership, then locate the Patty Slaps offer. What’s great is that this deal is available specifically at the Royalmount location, which is a convenient spot for many local foodies. The Psycho Patty itself is a delicious double cheeseburger featuring caramelized onions and served on a soft pretzel bun. The combination of the savory patties with the slightly sweet and buttery pretzel bread creates a perfect flavor balance that’s quite different from your usual burger experience. Because it’s a double patty, it’s very satisfying, making it a great treat if you’re craving something hearty. From personal experience, the redemption process is smooth—you just show the app’s code at the counter, and they handle the rest. It’s important to head there early as this offer runs only while supplies last. This exclusivity adds to the excitement, knowing you’re accessing a special deal not available to everyone. For those wondering whether the Vayla membership is worth it, in my opinion, the subscription cost pays off quickly through savings on deals like this and other local food offers. It essentially unlocks a world of affordable dining options if you enjoy exploring new spots and flavors around Montreal. Plus, it’s easy to browse different restaurants through the app and plan your visits accordingly. Overall, this free Psycho Patty deal is an excellent way to indulge in a quality burger without paying the usual price. Whether you’re visiting Patty Slaps for the first time or returning for their well-loved menu items, the Vayla app makes it hassle-free to claim your burger. If you’re a burger enthusiast or simply looking for a tasty bargain in Montreal, I highly recommend grabbing this offer while it lasts.