I have fond memories of my Grandmother always having krumkaka at Christmastime. I love the sweet taste and the crunch. It's easy to make and I only suffered a little burn on my finger. Note...krumkaka irons stay hot long after you make the last one. This is another treat that I wonder why I only make them at Christmas.
2/3 cup water
1/4 cup butter
1/2 cup sugar
1 cup flour
1 large egg
1 tbsp vanilla
1 dash cinnamon
Heat water to boiling. Add in butter and stir until melted. Add in sugar and stir until dissolved. Let cool.
When cool add in egg, flour, vanilla and cinnamon.
Bake per your krumkaka iron instructions.