Once a staffer is approved to work at Buckingham Palace or Mar-a-Lago, the real challenge begins. Both the Windsors and the Trumps are said to have high expectations for the way their households are run, and their employees work hard to deliver. This is especially true for chefs that work at each residence, as they must always keep their employers' dietary preferences in mind. And, apparently, when it comes to food, both the Trumps and the Windsors have a whole lot of preferences.

Indeed, according to "The Grifter's Club," most Mar-a-Lago chefs know that Ivanka Trump will not touch anything with mushrooms and that her coffee cannot be made with whole milk under any circumstances, as she prefers skim. Donald Trump, meanwhile, must always be served shrimp of a respectable size. Per the journalistic report, Trump once "had been displeased by the size of the shrimp served during his final meal at the club. Nearly six months later, it was still bothering him." Apparently, he even confronted the chef, "You changed that shrimp, right?"

Across the pond at Buckingham Palace, the Windsors are rumored to have just as many dietary restrictions. Graham Tinsley, who once catered for the royal family, told Hello! that King Charles III is something of a picky eater. Tinsley divulged that the monarch, "doesn't like chocolate, he doesn't like coffee, nor does he like garlic" and he "requires a side salad for every meal."