Apple Streusel Slice.

 

What you'll need:

Sweet shortcrust pastry:

 (*This recipe makes double the amount of pastry required, 
I like to keep one half in freezer to use at a later date*)

250g Plain Flour
75g Icing Sugar
Pinch of Salt
120g Unsalted Butter, Room temp

2 Egg Yolks
1 tbsp Cold Water