Preheat oven to 350F. Grease a 9x9 baking pan. I line mine with parchment with long ends so I can lift it out later for neater cutting, but that's optional.
Start with the blondies. Beat the butter and brown sugar sugar together for a couple of minutes until well blended and the color lightens a bit. Work out any sugar lumps.
Beat in the egg, vanilla, salt, and cinnamon. Fold in the flour, and then the zucchini and nuts. Mix just until well blended, don't over-mix.
Turn the batter into your prepared pan. Smooth it out so the surface is flat.
Bake for about 30 minutes until a toothpick inserted in the center comes out without wet batter clinging to it. Don't over bake these.
Let cool a bit on a rack while you make the frosting. I like to frost these bars when they are still a little bit warm.
Melt the butter in a saucepan and add the sugar and cream. Bring the mixture up to a boil, whisking continuously.
When it comes to a boil, take it off the heat and whisk in the sugar until you have a thick frosting. It will set up quickly, so pour it over the blondies and smooth out with an offset spatula before it hardens.
Let the frosting set up, then cut the blondies and enjoy!
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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