I don’t believe that’s it - it’s not any underlying sweetness I’m missing. Rather, it’s texture and flavors - or lack of them. As bad as their burgers are, Five Guys makes terrific fries - their Cajun fries are outstanding. Thick cut, perfect texture when served hot, just the right amount of seasoning. If In-N-Out could just figure out how to make fries like that, they’d be the perfect fast food place. Everything else In-N-Out makes is outstanding.
Most fast food places here in the US can’t cook good french fries. The only way to eat them is to cover them in ketchum...