BELGIUM: Home of French Fries You can find French fried potatoes all over the world, but as Belgians will tell you, they, not the French, invented this popular street food, back in the seventeenth century. The Belgian city of Antwerp has the world's only French fries museum. Crispy French fries, eaten from a paper cone with salt and plenty of mayonnaise are the Belgians' favourite snack. They are sold at special kiosks all over major towns. The secret of perfect French fries is that they are fried not once, but twice, in hot oil - the first time to cook the inside, and second time to give a perfect, golden outside