Mariánskolázeňské oplatky are wafers with an unusually large and round shape, produced in the municipalities of Mariánské Lázně and Velka Hled'sebe in the Czech Republic since 1856. The final product consists of two thin wafers glued together by a layer of filling, which can be made with hazelnuts or cocoa.
The edge is crumbled, and the wafers break with a characteristical crack once they are bitten into. The wafers are either light brown or cream in color, consisting of wheat flour, sugar, egg yolks, salt, starch, and flavorings. The fillings have a texture that is granular, while the flavor is delicately sweet.