Thai restaurants worldwide could be affected as government seeks to standardise flavours of traditional dishes.
Pad Thai is a classic Thai dish consisting of stir-fried rice noodles, and it is commonly served as street food.
Today, Google is celebrating the plate with an animated doodle, while exploring the history behind it.
Pad Thai is a Thai dish of stir-fried rice noodles with eggs, vegetables and tofu in a sauce of tamarind, fish, dried shrimp, garlic, red chilli pepper and sugar.
Some of the ingredients are provided on the side as condiments, including red chilli pepper, lime wedges and peanuts.
There is also a vegetarian version that could substitute soy sauce for fish sauce, and omit the shrimp.
Other believe it is a dish of Vietnamese origin.
During the second world war, the country faced a shortage of rice, but rice noodles were not hard to find, presenting a cheap and filling option.
The Thai government, under Prime Minister Plaek Phibunsongkhram, promoted the dish, helping to develop part of the country’s identity.
Pad Thai has become one of the country’s national dishes.
Many recipes are available; this is one of the most popular:
In a pan, heat 1/4 cup of oil over medium heat.
Add onions and garlic, and saute until you can smell their fragrance.
Add chicken and fry until it is cooked and browned. Remove chicken from the pan.
In the same pan, add tofu, lemon juice, sugar, soy sauce and water; stir.
When it boils, add the noodles and stir.
When the noodles are soft, move them to the edge of the pan, making a space on the side. Add two tablespoons of oil. Break eggs and add to hot oil.
Stir the white and yolk well. When they are well mixed, stir with the noodles. When the egg is well cooked, add the chicken and mix with the noodles.
Add the garlic and scallions, saute quickly and remove from flame.
Serve onto plates with lime wedges and sprinkle with a handful of chopped salted peanuts.