For the Dough

1. Add yeast and warm water to the bowl of the mixer fitted with the paddle attachment.  Let stand for a few minutes to dissolve the yeast.  
2. Add sugar, milk, butter and egg yolks and mix on low speed.  
3. Gradually add in the flour.  Do not over mix.  The dough should be buttery and slightly sticky to the touch, but manageable.  
4. Remove the dough from the bowl and knead a few times until smooth on a floured surface.   Wrap in plastic wrap and refrigerate for 8-12 hours.

For the Filling

1. Add butter, almond paste, and egg white to the bowl of the mixer fitted with the whisk attachment.  Mix on medium-low speed until smooth.  
2. Then add powdered sugar and flour and mix on low speed.  
3. Lastly, mix in the chopped almonds until well incorporated.  Cover and chill until ready to assemble.

To Assemble

1. Unwrap the dough and place it on a well-floured surface.  Shape it into a rough rectangle with your hands, and then roll out into a 12-inch by 15-inch rectangle.  Be patient as you roll, checking to see if the dough is sticking to the work surface and adding flour as needed.  
2. Trim the uneven edges with a sharp knife.  
3. Spoon the almond filling into the center third of the rectangle, and then pat it into an even layer.  
4. Use a sharp knife to cut one-inch diagonal strips in the dough from the edge of the dough to the edge of the filling.  
5. Fold the top and bottom edge of the dough over the filling, and then alternate folding over the strips on each side.  
6. Let the almond braid rise, covered with a clean kitchen towel in a warm place for 30 minutes.  
7. Then preheat your oven to 375 degrees, and brush the top of the almond braid with the remaining egg white and sprinkle sliced almonds over the top.  
8. Bake for 20-25 minutes or until the top of the almond braid is golden brown.  
9. To make the glaze, whisk powdered sugar, milk, and almond extract together in a small bowl until smooth. 
10. Transfer the almond braid to a cooling rack and allow to cool before drizzling with almond glaze.  Slice and serve.