Smashed Burgers with Caramelized Onions and Gruyère cheese

Talk about elevated comfort food! Lots of sliced red onions get caramelized. An addition of red wine vinegar & sugar give them a tangy sweet taste. Paired with Gruyère cheese on the burger patty, take the hamburger to Next level! I used Trader Joe’s vegetarian Masala Burger patties! Served it with French fries sprinkled with smoked chipotle seasoned sauce and side of house made thousand island dip! Paired it with Ginger Beer🍹 The whole combination is incredible💕