Marshmallow Cookie Bars. In any flavour you like.
Marshmallow Cookie Bars. Easy to make in any flavour you like. The shortbread cookie bottom gets topped by a homemade marshmallow layer made from your favourite flavour of Jello!

Originally published Nov 2016.
These Marshmallow Cookie Bars are another common cookie treat around Christmas time here in Newfoundland.
Some of the recipes for the marshmallow layer that I've tried in the past were quite bland though, so I decided to make them a bit differently than some of the local bakeries.My biggest issue was the marshmallow layer on top. A couple of recipes that I'd been given over the years produced a marshmallow that was pretty lacklustre, both in flavour and in texture.

The marshmallow was relatively flavourless and worse, the marshmallow was more like whipped jelly than anything else.
My solution to improve this recipe was first to make a slightly thicker base for the cookies. That extra strength would hold up better to support a thicker and denser layer of marshmallow.

Secondly, I decided to use a very old recipe which I believe at one time came on an insert in Jello packages. The recipe was a very simple one for making homemade marshmallows from Jello jelly powder.
I whipped up the recipe as directed and spread the thick gooey warm marshmallow all over the prepared, cooled cookie base. I then sprinkled on some dried coconut for decoration and waited for the marshmallow layer to cool and set.
A real family favourite.
Honestly, I loved the way these turned out and I am a bit ashamed to say that I've eaten a few too many. It really was like stepping back into kid-dom, tasting these.

Just as I was writing this post, lunch guests arrived at my front door. My Sister Brenda is visiting from Alberta and she came to lunch with my Mom and Dad, my sister Barb and her daughter, Taylor.
After our lunch of Dijon Brown Sugar Glazed Ham and various potato and pasta salads, I put out a selection of goodies that I'd been baking for the upcoming Christmas season.
These Lime Marshmallow squares were the hit of the cookie of the cookie platters! I guess maybe my family are all kids at heart like me.
Looking for more cookie inspiration?
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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I made these to take to an office group and they all raved about them. My cutting wasn't as nice as yours but nobody complained. 🙂
The conversion of flour to metric I think should be 250 gm/ml and not 475 ml
@Elaine, That conversion is not in grams, as is usual. The software developers just changed to metric volumes, not weights. It is a disappointing feature of what I thought would be better conversion built in. Take it for what it is. I use 140g per cup for all purpose flour.