Hamburger of the country." Louis Lassen of Louis' Lunch, a small lunch wagon in New Haven, Connecticut, is said to have sold the first hamburger and steak sandwich in the U.S. in 1900. "New York" magazine states that "The dish actually had no name until some rowdy sailors from Hamburg named the meat on a bun after themselves years later", noting also that this claim is subject to dispute. A customer ordered a quick hot meal and Louis was out of steaks. Taking ground beef trimmings, Louis made a patty and grilled it, putting it between two slices of toast. Some
What Love Is Made Of does best, albeit slightly more polished around the edges". He finally wrote that "the result is more than enough to keep our obsession rolling through yet another summer stretch". Sam Lansky from Idolator believed that the song had potential to become a "club hit" and named it the "biggest thing she’s recorded to date", while like other critics, highlighting Katy's vocals. Commercially, "What Love Is Made Of" fared well on European charts. It stayed two weeks at the UK Singles Chart, where it peaked at number 21. On its component chart, the UK Dance chart, its peak was higher, at