Sometimes it may set within 4 hours too but even if it sets you can leave it for more and then cut no worries
Be watchful for the sugar syrup consistency for flawless result.
Don't forget to grease pan,spatula and cutting knife.
If we beat too stiff then pouring and setting will be too difficult.
Rolling each portion with flour is needed after cutting.
Instead of vanilla essence any flavouring you can add according to your wish.
Serrated knife was very useful for me in cutting.