The Asador Aupa restaurant in Spain serves the world’s most expensive and special burger. It costs $11,000 and can only be experienced by those invited by the restaurant.

Burgers have gotten considerably more expensive in recent years, but they remain among the most affordable food items on restaurant menus. There are a few exceptions, though, the most notable of which recently claimed the title of “the world’s most expensive burger”. Thought up by the chefs at Asador Aupa, a Basque cuisine eatery located in Cabrera del Mar, Catalonia, this special treat reportedly took eight years of research and experimentation to develop, and its exact ingredients remain a secret. All we know is that the burger’s heart-stopping €9,450 ($11,000) price tag is linked to quality ingredients, and a unique dining experience.

Asador Aupa was founded by Bosco Jiménez, better known as BdeVikingo, a Spanish chef known for his love of the Basque cuisine. His concept for the world’s most expensive burger was simple — “luxury shouldn’t be noisy, it should be unattainable.” Few people can afford to pay $11,000 for a burger, but even having amounts of money isn’t enough. To try the world’s most expensive burger, you have to be invited by Asador Aupa.

Only those who meet all the requirements are invited to try the world’s most special burger, but here’s the kicker: no one knows what the requirements are. However, if you do get selected by Asador Aupa, you will be invited to a private room of the restaurant, seated at a table with a few other lucky customers, and served a delicacy cooked with the “three best meats in the world”, “the most special cheese in Europe”, and a special sauce prepared with a luxury spirit.

1. 1. What is a special feature of the burger at Asador Aupa?（细节理解）

A    It is cheap and easy to buy.

B    It costs $1,100 and is open to all.

C    It is pricey and requires an invitation.

D    It uses common ingredients and is popular.

2. 2. What is true about the development of the world’s most expensive burger?（细节理解）

A    Its recipe is widely available for other chefs to learn.

B    It was created quickly to meet market demand.

C    Its main cost comes from its marketing.

D    It involved a lengthy process of creation.

3. 3. What’s required to try the world’s priciest burger?（细节理解）

A    Only enough money.

B    Asador Aupa’s invitation.

C    Basque family background.

D    Cooking skills.

4. 4. What is known about the selection process for potential customers?（细节理解）

A    Candidates must pass a culinary knowledge test.

B    The specific standard remains undisclosed.

C    Preference is given to influencers and celebrities.

D    Selection is based only on financial status.