Despite its name, it isn't wrapped or steamed like a regular tamal at all — it's baked flat in a pan, closer to a dense cornbread than to any tamal shape.
Fresh corn is ground with cheese, butter, and sugar into a thick batter, poured into a pan, and baked until firm and lightly golden. Vendors at Guanacaste's cattle fairs and town fiestas sell it cut into squares.