Vanilla slice is an Australian pastry comprising a thick layer of vanilla custard sandwiched between puff pastry and topped with icing sugar or thinly iced.

[2] Other similar pastries include the Dutch Tompouce, Polish Napoleonka, German Cremeschnitte, Balkan and Middle Eastern Galaktoboureko, among others.

[2] In keeping with the informality and disdain for pretence in Australian vernacular, it is common to refer to the dessert using colloquial names based on bodily fluids such as pus, phlegm, or nasal mucus which are similar in appearance to the custard filling.

[1] To celebrate its cultural significance, an annual competition known as The Great Australian Vanilla Slice Triumph has been held since 1998.

[1] The event was hosted annually in Ouyen until 2001, when it moved to the nearby town of Merbein.