I used the icing recipe from our Chocolate Slice and it's best to pour it over the slice while it's still hot. I just tip the icing in the middle along the slice, pick up the tin and tilt it towards me until the icing runs to one edge and then tilt it back so that it runs to the other edge and once cooled I put it in the fridge to set. Later that afternoon I was cleaning up the bench near the stove and discovered we left out the 1/2 cup of spelt flour so only 1/2 cup of plain flour went into the slice. Considering we had especially driven to the bulk food store on Saturday to get the spelt flour it was disappointing however the slice was perfect and stayed together so will be making this again and again. The kids loved it and is much quicker than making a whole lot of biscuits. I wanted to put sultanas in it however Sienna doesn't like them and considered making half of it with the sultanas but in the end we made this one without them this time. It's delicious and it's all cut up in the freezer now.