Tarragon – I wish I had seen your request sooner. My wife just made a pair of kringle using this pastry recipe from O&H Danish Bakery (her first try at kringle). She was going to make them for Christmas, but did not get started in time. The recipe is a multi-day affair, but well worth the effort.
The one on the left is filled with her raspberry-strawberry jam and sliced almonds. The other is a turtle – chocolate, caramel & pecan filling. These are the best kringle I have ever eaten. Although, I’ve never had the chance to try kringle still warm at the bakery.
For other kringle filling ideas, here are two more links to recipes.