A bizarre brawl in McDonald's saw an employee beat a customer with a deep-fat fryer over a dispute about an apple pie.

The irate customer reportedly leaped over the counter to get his baked treat because staff were taking too long at one of the chains in London.

But a fight erupted when the man tried to barge his way into the back and multiple staff tried to hold him back.

One of the workers, who'd been in the middle of cooking chips, used the deep-fat fryer as a weapon to repeatedly whack the customer

One of the workers, who'd been in the middle of cooking chips, used the deep-fat fryer as a weapon to repeatedly whack the customer.

Bystanders screamed as the staff member bashed him across the head.

The cameraman then pans to another restaurant staff member who is nonchalantly watching the violence unfold.

Multiple workers try to hold the irate customer back after he leaped over the counter and tried to barge his way into the back

The footage, which began circulating across social media on Wednesday, was taken on Snapchat.

When it made its way onto Twitter It was accompanied by a photo captioned: 'When the apple pie still isn’t ready after 6 minutes.'