Hamburgers are American, invented by German Immigrants

https://toriavey.com/a-brief-history-of-hamburgers/#:~:text=A common misconception is that,raised in the regional countryside.

https://burgertheoryidahofalls.com/who-invented-the-burger-the-surprising-history-of-americas-favorite-food/#:~:text=The origins of the burger,late 1800s or early 1900s.

https://charbarhhi.com/take-a-bite-out-of-history-the-origin-of-the-hamburger/#:~:text=Being the butcher who gave,to call his sandwich%3A Hamburger.

Apple pies are British, btw