Jamie OliverJamie Oliver was surprised by how much skinny celeb Sienna Miller can eat.

“I did the Burberry 150-year anniversary party in New York last week and cooked roast beef with all the trimmings,” he revealed recently.

“I was sitting next to Victoria Beckham and she was on the salad but Sienna was getting stuck right in. She doesn’t stop eating that girl!”

His offerings didn’t go down as well with everyone: Hollywood star Jessica Alba wasn’t so keen.

“[My wife] Jools overheard her asking: ‘What’s this Yorkshire pudding sh**?’ They don’t understand. You know what Americans are like…”