Former Doctor Who star has left her American fans confused after tweeting she couldn't wait to get her hands on a "pile of chips with chippy sauce" on her return to Scotland.

The beauty was inaundated with tweets from fans who did not understand what she was talking about.

Chippy sauce is a put on chips in Edinburgh and is offered with salt.

The 27-year-old actress flew back to Scotland to be a judge at the Edinburgh Film festival.

One confused follower said, "Serious question from all the Americans: what's chippy sauce, please?"

The actress replied, "The greatest sauce in existence."

 

Hunky Outlander star Sam Heughan, who plays Jamie Fraser in the hit Starz show, even joined the debate.

While other confused fans said:

The star also tweeted about how excited she was to be back in Scotland.