A waffle is a batter

Batter (cooking)

Batter is a semi-liquid mixture of one or more flours combined with liquids such as water, milk or eggs used to prepare various foods. Often a leavening agent such as baking powder is included to aerate and fluff up the batter as it cooks, or the mixture may be naturally fermented for this purpose...

- or dough

Dough

Dough is a paste made out of any cereals or leguminous crops by mixing flour with a small amount of water and/or other liquid. This process is a precursor to making a wide variety of foodstuffs, particularly breads and bread-based items , flatbreads, noodles, pastry, and similar items)...

-based cake

Cake

Cake is a form of bread or bread-like food. In its modern forms, it is typically a sweet and enriched baked dessert. In its oldest forms, cakes were normally fried breads or cheesecakes, and normally had a disk shape...

 cooked in a waffle iron

Waffle iron

A waffle iron is a cooking appliance used to make waffles.It usually consists of two hinged metal plates, molded to create the honeycomb pattern found on waffles...

 patterned to give a distinctive and characteristic shape. There are many variations based on the type and shape of the iron and the recipe used.

Waffles are eaten throughout the world, particularly in Belgium

Belgium

Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

 and the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Common toppings are strawberries, chocolate, sugar, honey, syrups, ice cream, and more.
Wafer and waffle share common etymological roots.