SPECULAAS IS A TYPE OF SPICED SHORTCRUST BISCUIT, TRADITIONALLY BAKED IN THE NETHERLANDS, BELGIUM, GERMANY AND AUSTRIA. SPECULAAS ARE THIN, VERY CRUNCHY, CARAMELIZED, SLIGHTLY BROWNED AND, MOST SIGNIFICANTLY, HAVE SOME IMAGE OR FIGURE, THUS OFTEN CALLED IN THE UNITED STATES AS WINDMILL COOKIES.