I tried making Ina Garten's recipe for caramelized-onion smash burgers and they were easy and delicious.Lloyd Bishop/NBCU Photo Bank/NBCUniversal/Getty Images; Erin McDowell/Business Insider I made Ina Garten's smashed cheeseburgers with caramelized onions. The recipe only calls for a few ingredients and you don't even need to fire up the grill. The burgers were perfectly juicy and the simple toppings made the process super easy. Ahead of Memorial Day weekend, I decided to try one of celebrity chef Ina Garten's cheeseburger recipes.Ina Garten has come up with multiple different burger recipes during her decades-long career.