Dale Earnhardt Jr. swears this sandwich is delicious

LAS VEGAS, NV - MARCH 04: Dale Earnhardt Jr, driver of the #88 Nationwide Chevrolet, prepares to drive during qualifying for the NASCAR Sprint Cup Series Kobalt 400 at Las Vegas Motor Speedway on March 4, 2016 in Las Vegas, Nevada. (Photo by Chris Trotman/Getty Images)

Dale Earnhardt Jr.'s favorite sandwich is ... interesting.

On Tuesday, Junior posted this photo to his Twitter account. It's a banana and mayonnaise sandwich on white bread. Banana and mayonnaise. To quote our own Mike Joy, "Have you ever?"

While unusual, it's certainly not an unheard of delicacy in the South. It was even a lucky sandwich for the Washington Nationals in 2014.

Even Earnhardt knows it's a very polarizing treat.