Poppy Seed Roll Recipe with Walnut and Raisin Filling

Make the Filling Ahead: For convenience, the poppy seed filling can be made a day in advance and stored in the fridge until ready to use. This saves time on the day of baking!
Flavor Variations: If you prefer, you can switch up the nuts and use hazelnuts or pistachios for a different flavor profile.
Don’t Skip the Egg Whites: The egg whites help to firm up the filling and make it easier to slice once baked. If you want a firmer filling, this step is highly recommended!