Mix all ingredients for walnut filling in a pan, cook to combine well, take off from heat, stir in raisins. Set to side to cool to room temperature.
Mix all ingredients for poppy seed filling in a pan, cook to combine well, set aside to cool to room temperature.
Mix dry ingredients in a large bowl, make a well in center. Pour in milk and add in yolks, stir to combine. Add in butter and knead to a nice dough.
Divide dough into two equal portions.
Roll each portion to a rectangular. Spread poppy seed to one while walnut to other. Roll like you would jelly roll, and not too tight.
Place rolls on parchment lined pan, poke holes all over and brush with egg whites.
Bake rolls on preheated 350 for 45-60 minutes.