'duck eggs' on Serious Eats
Like curing meats, the practice of salting duck eggs may have started as a method of preservation, but now salted duck eggs are a delicacy. Salting makes the egg whites dense and almost rubber-eraser-like in appearance, but it's the yolks that are especially prized. There's nothing quite like a good salted duck egg yolk. If properly salted, the duck egg yolks are creamy, granular, and oily all at once—an intriguing textural composition that tastes especially rich and salty.