All purpose flour-2 and 1/2 cups,
Icing sugar-1 cup-sieved,
Vanilla essence-1 tsp,
Egg-1 for egg wash(optional).
Grease a 9 x13 inch pan.
Pre heat oven to 180 C.
Sieve flour in a bowl and then measure 2 and 1/2 cup and keep in another bowl.
Beat butter till smooth.
Add icing sugar and vanilla essence and beat for a minute or till smooth.
Scrap the sides with a spatula or spoon.
Add flour and raisins and beat only till incorporated.
Using the back of a spoon level the top.
Bake for 30 to 35 minutes.
The edges will be brown and the top will be light golden brown.
Using a sharp knife cut the cookies while still warm.
The cookies have to be cut while still warm because the butter hardens the cookies and will break if cut at room temperature.