Combine softened Butter and softened Cream Cheese in a bowl, add Egg Yolk and Vanilla, and mix well.
Add Plain Flour and mix as you cut the butter mixture into flour. Use your hands to bring the mixture together into dough. *Note: If the mixture is too soft, add 1-2 tablespoons extra flour.
Make filling by mixing all the ingredients.
Preheat oven to 170°C. Line a baking tray with baking paper.
On a lightly floured flat surface, use a rolling pin to roll the dough out to a large 3mm thick disc larger than 30cm in diameter.
Cut the disc into 16 wedges, spread the filling mixture and roll up each wedge from the outside edge.
Place on the prepared baking tray and bake for 30 minutes or until golden.
Remove from oven and set aside to cool. Dust with Powdered Sugar.
