Karlovarské oplatky are flat wafers made according to an old, traditional recipe in the area of Karlovy Vary in the Czech Republic since the mid-18th century when they were originally homebaked. As evidence, today there are the oldest wafer-making irons in the Karlovy Vary Museum.
In the past, cooks would make wafers sprinkled with sugar for the guests of the Karlovy Vary spa. The wafers have a diameter of 19 centimeters and, in the middle, there is a water fountain or a chamois, a symbol of the spa town. The thermal spring water is used in the production process, acting as a moisturizer for the wafers.