The presenter of BBC Two's Baking Made Easy told her Twitter followers about the incident after expressing shock at the British National Party's immigration policy in the wake of their third-place finish in Rotherham's recent by-election.
Pascale said that the landlord made a racial slur but said she could stay as his wife is a fan.
She explained: "Was in country pub. Landlord said to me all 'n words' should go 'home' & were not welcome. He said I could stay tho as his wife liked my cakes. (sic)
"I looked at him with my best bitchy LP glare, paid for my pork scratchings and walked right out of that pub…"
Pascale added: "It's just about seeing the funny side of it I think. Laugh it off and feel sorry for them."
The former model has also been the target of abuse on Twitter in recent months and criticised Twitter US for not doing enough to protect her against attacks from users based in America.
She told The Mirror: "I have been on the receiving end of some pretty horrible abuse for two months.
"I've tried to stop it and been told because the person responsible is in the US there's nothing I can do.
"That's very frustrating and while Twitter UK have been incredibly helpful, I don't understand why Twitter US can't do more.
"If it's happening to me it's almost certainly happening to others who are even less able to do anything about it."