Jason Momoa was surprised with a Guinness and whiskey cake for his birthday, and it weighed a whopping 168 pounds.

The massive cake, made by UK-based baker Aggy Dadan of Edible By Aggy, took a week to make and was infused with Guinness and whiskey. It was served atop a giant sugar surfboard and featured a massive wave on one side and a mountain on the other – two of Momoa’s favorite things, Dadan told INSIDER.

“I was thinking, what could be better than putting the whole thing on a sugar surfboard,” Dagan said. “We incorporated a little mini pint of Guinness, because he loves Guinness, and a little box of donuts for his best friend [Mada Abdelhamid], who calls himself ‘Donut Man.'”

IMG_3377

Foto: Jason Momoa's birthday cake.sourceAggy Dadan

Late in 2018, Dadan made a 3/4 scale cake bust of the actor for the Aquaman premiere and kept in touch with Momoa afterwards. This time, Abdelhamid, who is also Momoa's trainer, reached out to Dadan and commissioned the cake for his surprise 40th birthday party in London.

"Jason is a big family man, so [Abdelhamid] wanted to include things that represented that in the cake," Dadan said. "They left it pretty much up to me, which I love. I love when people let me use my creativity."

Dadan included a few pieces to represent Momoa's family life, such as the wolf and the moon, which represent his son Nakoa-Wolf Manakauapo Namakaeha Momoa, and his wife Lisa Bonet.

IMG_3366

Foto: Aggy Dadan and the cake.sourceAggy Dadan

The elaborate confection featured a chocolate figurine of Momoa riding a wave and playing guitar at the same time, as well as a similar figurine climbing a mountain. The cake was also served on a sugar surfboard made out of a thin wooden skeleton covered in a half inch of pure sugar, Dadan explained.

"The board took two days - it had to be strong enough for the cake to sit on," Dadan told INSIDER. "The cake was very heavy, about [168 pounds], I think. When I tried to move it, I couldn't"

Dadan said the cake took about a week to make.

"It was a big task, but when you have someone who isn't pushy and lets you put your creativity to work, it's great," she said. "The surfing board alone took two days, and the miniature figurine of Jason took a day and a half."

IMG_9975

Foto: Dadan and Momoa have collaborated before.sourceAggy Dadan

Dadan explained that the recent heat wave in the UK was the toughest part of the cake making process.

"The figurines were the most difficult in the heat," she said. "The summer makes things hard in general, but the heat wave made it really tough. It took three tries, because the heat kept melting them."

Dadan said she worked on the figurines late into the night to beat the heat.

"I was working very late at night, at three or four o'clock in the morning," she said. "If it weren't so hot, the figurines would have only taken a few hours."

Dadan said the reaction to the cake was incredible.

"I could not imagine a better reception," Dadan said. "Jason said it was absolutely beautiful, and that it was the best cake he ever had. I think because it was a Guinness cake!"

Read more: Jason Momoa is set to guest star on 'The Simpsons,' and his animated character looks ripped like him. Experts share what it takes to make a six pack 'pop.'

IMG_3389

Foto: Eddie Hall doing cake curls.sourceAggy Dadan

IMG_3371

Foto: Dadan and Momoa at the actor's surprise 40th birthday party.sourceAggy Dadan

Read more: A zoo threw its 60-year-old tortoise a birthday party and it's the cutest thing ever

Eddie Hall, who won the title of World's Strongest Man in 2017, even started doing curls with the cake mid-party, Dadan told INSIDER.

"As he was lifting it up he was taking bites out of it!" she said. "The whole thing was a really special moment. Everyone felt like family, and the cake was definitely the biggest part of the event. Everyone was so nice!"

A slew of celebrity guests attended Momoa's surprise party, including his "Game of Thrones" co-star Emilia Clarke, as well as actors Ian Somerhalder and Joe Flanigan.

IMG_3365

Foto: The beginning stages of the Jason Momoa figurine, made from white chocolate.sourceAggy Dadan

This isn't Dadan's first celebrity cake. She once made a life size R2-D2 cake for famous UK radio host Chris Moyles.

"It was remote controlled and could talk," she said. "It was also a surprise party - I can keep a secret!"

IMG_0531

Foto: Dadan and Moyles with the massive R2-D2 cake.sourceAggy Dadan

When asked who her dream customer was, Dadan said she has already had her dream customer - Momoa - twice.

"You couldn't ask for a better customer!" she added.

Dadan said she hopes to one day have her own television show, where she bakes cakes for celebrities.

"I like to make cakes for anyone who appreciates food and art," she said. "Maybe even the Queen!"