Hi Maddy, where did you get the windmill mold from?
I love it. I haven't made this recipe yet as seem to always stick to the one I was given by a Dutch friend. When I was in Holland and Belgium last year though I was surprised that you can buy several types. They differed in colour, some being very blonde. I was told in a bakery that the recipe often differs house to house so perhaps the one in the Devil Book is one of these "house" biscuits. Glad it was nice though and must give it a try.