In his new book, “Sir White House Chef,” Ronnie Seaton reveals intimate stories from 32 years serving presidents from Reagan to Obama.

He tells how he watched as Bill Clinton seduced female staffers and how he saw Dick Cheney berate George W. Bush on a daily basis, and even shares the meal served to Clinton and Monica Lewinsky the night of their blue-dress incident.

But the two most stunning revelations concern Bush 43.

Seaton claims that throughout his time in the White House, George W. Bush was drinking alcohol and smoking pot regularly, writing that “President Bush drank a lot of whiskey,” that “he loved bourbon and beer,” and that they would find “marijuana butts” when they cleaned up after him.

On the next page, Seaton claims that Bush had a one-night affair with Secretary of State Condoleezza Rice and that Laura Bush knew about it and “told Dr. Rice she needed to think about leaving her post.”

At this point, you might be wondering if this guy is for real.

The Post did, too, and found that — despite Seaton’s claims — the White House has no record of him ever working there. Yet he has persuaded a small Christian press, Heritage Builders, to publish his book and has appeared in the press around New Orleans, where he works, telling similar stories.

Although Seaton, 62, insists it’s all true, his bio alone is enough to raise eyebrows: A Vietnam veteran who spent 21 days as a prisoner of war (and won a Purple Heart), a Medal of Freedom winner (from two presidents) and, yes, a knight — because Queen Elizabeth II loved his cooking.

He certainly tells an entertaining story.

In his chapter on Clinton, Seaton recalls a special request for a dinner for two and describes what he calls “one of the most seductive meals I’ve ever helped make,” including chocolate-covered strawberries, caviar and “a very expensive bottle of Champagne.”

The president’s guest that night, he writes, was Lewinsky.

The next morning, he says, the room they ate in looked like “a wild party went on in there.” Then, he says, “one of the Secret Service men walked out with a dress on a hanger wrapped in a cleaners bag. It was a dark blue garment.

“‘Ooh, that dress,’ I commented. ‘It’s really long.’

“‘Yeah, we have to take it to the cleaners,’ the man answered. ‘It’s got a stain on the chest.’

“‘A stain?’ I didn’t think much about it.”

Never mind that, according to the Starr Report, encounters between Lewinsky and Clinton were conducted in private studies and did not involve any dinners.

Seaton claims to be the only US chef ever knighted by Queen Elizabeth II — and says he was given the honor on the spur of the moment.

He writes that the queen visited George W. Bush at the White House in April 2008. (Bush’s state dinner honoring the queen was held in May 2007.) After claiming he was in charge of the evening’s desserts, he writes that “there were four chefs working the dinner: Wolfgang Puck, Bobby Flay, Emma [sic] Lagasse, and me.”

(White House Executive Chef Cristeta Comerford has held that position since 2005 and would have been in charge of the dinner.)

After the dinner, Seaton recalls, Queen Elizabeth met the chefs.

“Master Chef, do you think it’s possible that I could get the recipe for your dessert?” she asked.

“‘Yes, Your Majesty,’ I said as I raised my eyes to meet hers, ‘but you don’t have enough money.’

“‘What?’ The Queen asked.

“President Bush looked at the others and me very quickly as if to say, Oh, Lord, we’re in trouble now.

“Prince Philip, the Duke of Edinburgh, laughed because he thought it was funny.

“‘Your Majesty, there is a credit card called Visa,’ I said.”

It goes on for a while, making it probably the longest chat the queen has ever had with a nonroyal.

He goes on to say that he joked with her, playfully mocking Bush in front of him, and that he asked her for a trip to England to cook for her.

A few days later, he says, “a black Suburban pulled up at the front curb of the house. The Secret Service and the FBI were in the car. It was curious because in the hands of one of the Secret Servicemen, was a tape recorder and an envelope.

“ ‘Are you Master Chef Ronnie Seaton,’ the Secret Serviceman said, ‘please show your ID.’

“I pulled out my Identification and credential and showed it to him. He then told me that they had a letter they wanted me to read, and then they would tape my response. I opened the letter from President George Bush.

“‘I George Bush, Jr. have a directive that Master Chef Ronnie Seaton will travel to Buckingham Palace in London, England December 19 and cook the Queen’s Christmas dinner. What is your response?’ ”

Soon after, he writes, he found himself cooking at Buckingham Palace for the queen, and she loved it so much, she sought him out.

“I knelt down, and the Queen lifted the gold sword about two feet long with precious stones lining the handles. ‘I Queen Elizabeth the Second of Buckingham Palace of London, England dub thee Lord Master Chef Ronnie Seaton, Sir. Rise and meet your public.’

“I looked up at her and asked, ‘What did you just do?’

“‘I Knighted you. You are now a Knight of my realm.’

“‘But I’m not from England, Your Majesty,’ I cried.

“‘Your meal was so impressive that I had to do this for you.’ ”

Buckingham Palace could find no record of Seaton having ever received any type of British honor.

On the phone, Ronnie Seaton’s first concern was his title.

“My title really is sir doctor master chef,” he said, attributing his “master chef” status to culinary school, and the “Dr.” to a Ph.D. in “Foodology” from Cornell University.

“The government told me the ‘sir’ supersedes the Ph.D., but I’m not over in England, so I just go by ‘doctor master chef.’ ”

Cornell: “We have no record of a Ron Seaton (or any other variation on first name) attending Cornell University.”

As for Seaton’s claims that he served in the Vietnam War, was a POW for 21 days and won a Purple Heart? Also false. Blogger Jonn Lilyea, who investigates stolen valor claims, found records that show Seaton served in the Army, but never went to Vietnam and didn’t win a Purple Heart.

Seaton fondly recalled how Ronald Reagan loved his food, and how the White House staff referred to the first Bush as “Daddy Bush.”

He told me how Clinton would play his saxophone for the chefs in the kitchen, and how he would hear a “slap” from the other room whenever Hillary Clinton lashed out at her husband.

I asked what he witnessed of the younger Bush’s supposed drinking.

“I saw him drinking some bourbon, Champagne and some wine,” he said. “When you work there, you see a lot, and you don’t say too much. The Secret Service is very close. They let you know that whatever you see, you keep it to yourself if you wanna keep working there.”

He also told me how he and other staffers had heard George W. and Laura Bush discussing the president’s alleged affair with Rice, but said the couple cut it off when family members entered the room.

‘The Secret Service is very close. They let you know that whatever you see, you keep it to yourself if you wanna keep working there.’ - Ronnie Seaton

I expressed surprise that such a conversation would be held in front of members of their household staff.

“They trusted me to be close to them,” Seaton said. “That’s all I can say. It wasn’t loud, but it was something you could hear. Once the family came into the room, everybody was just smiling at each other.”

Asked about other jobs on his online résumé, Seaton first said he was encouraged by the White House to do volunteer work in his spare time. But when asked about a position listed on his LinkedIn page, as headmaster of a New Orleans school from 2000 to 2005, he claimed to have taken sabbaticals to work with at-risk kids.

Asked the length of these sabbaticals, of which he said there were three, he replied, “I would take them a year at a time, but I was also constantly in contact with the White House through computers on a daily basis.”

Seaton also explained the gold emblem he wears around his neck.

“It’s the court of arms from the queen of England. It’s something she had never made for an American chef,” he said. “It’s a chef’s hat. It has eight diamonds across the bottom that represents my eight children, then there’s a larger diamond in the middle above that group, which represents my wife, and then a larger one at the top that represents me.”

“It’s made by the jewelers who make the queen’s jewels.”

Finally, I told Seaton that both the White House and one of the people he discusses at length in the book had no memory or record of him working as a White House chef.

Seaton brushed it off. Asked if he could send proof he had ever worked at the White House, he said, “I can see what my wife has in the file cabinet.”

Nothing has emerged.

“Sir White House Chef” is available on Amazon.com for $20.58.

It’s worth every penny.