Prince William Squares. A downsized version of the no bake UK favourite, chocolate biscuit cake, but made into smaller portions as cookie squares.

Prince William Squares.
I first wrote about chocolate biscuit cake around the time of the Royal wedding of Prince William and Kate Middleton. That was way back in April of 2011. It was chosen by the prince as the groom’s cake at the wedding reception. Read that post here.
The full recipe makes quite a large “cake”, which in reality is more akin to a giant sliceable chocolate bar. It is great to have around at the holidays to be enjoyed in small slivers, like fruitcake.
The full chocolate biscuit cake is perfect for dessert for a large group or to be enjoyed over the course of a week. This favourite of the entire royal family is rumoured to be required to return to the dinner table every day until finished.
Most dessert leftovers, apparently go to the palace staff but not this one. I can definitely see why. With all that creamy smooth chocolate interspersed with crunchy cookie chunks, it is pretty irresistible.

Dark Chocolate Chips at 50% cocoa, is my preference, but you can use whatever chocolate you like best.
Prince William Squares are a new holiday favourite.
This year during the holidays, I again wanted to serve this delicious, super easy, no bake treat on Christmas day. With my Pecan Pie already on the dessert menu as well as my simplified Christmas Pudding, a full cake would just be overkill.
In order to downsize the recipe, I decided to do what I had thought about for a while. Make the recipe as no bake cookie bars! I figured making them at half the height of the cake would be ideal for more bite sized treats.

Prince William Squares, ready to cut.
With a little applied geometry was required to adjust from a round 9 inch springform. I figured making a half batch in a 9×9 square pan would work well. It worked out beautifully.
The original cake recipe calls for a covering of ganache over the whole cake. That layer is really nice for presentations sake. I did not feel it was necessary in this case so I omitted that step in the recipe.
The cookies/biscuits in this recipe.

McVities Digestive Biscuits. This recipe uses about half a 400 g package.
The digestive biscuits (cookies) in this recipe could be substitutes for any crisp cookie you like if they are not available in your area. McVities Digestive biscuits are what I used and they are readily available across Canada.
My Christmas guests loved these little squares, particularly my daughter Olivia, who may have eaten half the batch over a few days!
If you liked this recipe you many want to check out this great collection of No Bake Cookies that was incredibly popular during our last Holiday season.
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Debbie Graham
Tuesday 21st of January 2020
Can I use Mr Christies arrowroot cookies instead?
Barbara Adams
Saturday 31st of August 2019
Delicious! A chocolate lover's dream. Like a rich, decadent chocolate bar. Goes nicely with fresh strawberries. Previously made the cake. Ditto for that.
sylvia
Friday 15th of February 2019
hi Barry, can these be frozen? thanks
Irene
Thursday 10th of January 2019
Barry, the usual UK recipes include cherries. For your next holiday I would suggest some quartered red and green candied cherries, eh?
Marilyn Woodworth
Saturday 5th of January 2019
What can I use instead of Digestive biscuits.....
Barry C. Parsons
Sunday 6th of January 2019
That is covered in this post if you read it.