14/08/2014 13:03 BST | Updated 20/05/2015 06:12 BST

Duchess Of Cambridge Gets Cooking Lessons From TV Chef Rachel Khoo

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LEEDS, UNITED KINGDOM - JULY 05: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends the Tour de France Grand Depart at Harewood House on July 5, 2014 in Leeds, England. (Photo by Max Mumby/Indigo/Getty Images)

The Duchess of Cambridge has been taking cookery lessons with celebrity chef Rachel Khoo.

The TV chef said Kate had a two-week basic course at Leiths cookery school with her, saying: "Kate was in my class. Kate was ill for a few days, so I took notes for her. She was a lovely person, but she kept herself to herself."

It was recently revealed that Kate has had a second kitchen installed at her Kensington Palace apartment, so it makes perfect sense to get the best advice possible on how to feed her family and entertain the Royals' guests.

But could Rachel's last comment also be a hint that the Duchess family is about to grow in light of recent speculation that Kate is expecting her second baby? Morning sickness, perhaps? Or are we just being mischievous?

Rachel was reluctant to be drawn on the comments she made to Woman magazine, but it's clear Kate is serious about improving her culinary skills as courses at Leiths do not come cheap.

A two- week course of the kind the Duchess went on at the west London normally costs around £1,600.

Kate had her existing 350 sq ft kitchen, originally designed by Princess Margaret's husband, Lord Snowdon, refurbished at a reported cost to the taxpayer of £170,000.

Courtiers made the point, however, that the additional 'private, family kitchen' that she wanted installed in her four-storey, 20-plus room home, was paid for out of the couple's private funds.

The news of Kate's cooking lessons comes as bookies suspended betting on a royal pregnancy announcement this month after a flurry of bets were placed in the last 48 hours.

The bets, which were placed with bookmakers Coral, were made online and in quick succession – enough for
alarm bells to start ringing for the betting firm.

Before the unusual activity, Coral had been offering odds of 10/1 on the Duchess of Cambridge announcing a second pregnancy in July but slashed the odds to even money before pulling the plug entirely.

Ladbrokes has also suspended betting on a July pregnancy announcement after slashing odds from 8/11 to 4/1 overnight.

The bookies suspended the betting following a blizzard of speculative reports in the foreign press, many of which claim to have proof that the Duchess of Cambridge is expecting again.

Most prominent was a report in Australian magazine New Idea, which alleged that a friend of the Duchess has confirmed the pregnancy rumours.

Jessica Hay, who confirmed the Duchess of Cambridge's first pregnancy in November 2012, is said to have told the tabloid that the Duchess is expecting with an announcement to follow 'within months'.

She said: "Kate's inner circle are buzzing with the news that she is pregnant. "I've heard it from several different friends of theirs now and they're saying that they think there's going to be an official announcement in weeks."

Jessica added: "Kate's face is fuller like it was when she was first expecting George and she's been changing her hair, which could be to disguise the fullness.

"She has rosy cheeks, she's letting her greys show again, and whenever she's out in public she goes to great lengths to hold something over her tummy."