Hedgehog Slice
Instructions
Grease a slice tin with butter (I only have a 31 cm x 22cm tin and just used half of it; use a smaller tin if you have it).
Crush biscuits (by hand or in a food processor), leaving some lumps.
Add nuts, sultanas (if using), cocoa and coconut.
In a small saucepan, melt butter, then stir in sugar, and vanilla.
Stir through biscuit mixture and then stir in egg.
Press into tin with the back of a spoon.
Put a bit of cold water on your fingers to press down the top so it is smooth.
To make icing, combine icing sugar and cocoa in a bowl and stir in enough water to form a spreadable paste.
Spread icing over slice and refrigerate overnight (this makes slicing much easier).
Cut into squares.