Disappearing Marshmallow Brownies

Disappearing Marshmallow Brownies

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These were very nice.  I don't remember these as a kid but I think they could make a fun memory because when you put them in the oven the marshmallows are so visible and then while they bake they "disappear".  

A lot of times when a recipe says "stir constantly" I get a book and read while stirring.
This time the margarine and butterscotch pieces melted so quickly I didn't even get to open the book (Love the One Your With by Emily Giffin).

I concentrated on the pieces that were still unmelted.

While it cooled to lukewarm I gathered the rest of the ingredients.  Notice I have the 1/2 tsp. sticking out towards the bottle of vanilla so that at the moment I'm ready to measure it I don't forget which spoon to use.  

I also greased the pan while the butterscotch/margarine was cooling instead of doing it at the beginning.  However - I forgot to pre-heat the oven so once the batter was ready I had to wait for the oven to heat - so be careful about doing things out of order.

I also made yogurt and sliced the bread I had baked while the butterscotch was cooling.  I think I left it cooling at least 15 or maybe 20 minutes.

Then I worried that I had left it cooling too long and it had become hardened but it did not.

I also worried that it might not be warm enough to melt the marshmallows. Maybe it wasn't supposed to although I felt a bit like I was making Rice Krispie treats.  In the end I think it was just the right amount of time.

I added in the dry ingredients first.  At this point I start double, triple, quadruple checking the recipe, thinking I missed adding some liquid or mis-read something because it looked SO DRY!  But everything seemed okay so I proceeded.

When I added the egg and vanilla it got a little better.

This mixed easily...

...it really was just about 5 strokes.

It was a pretty thin layer, it got a little tricky in some parts to get all the way to the edge without dragging a hole in the middle.

It appears to be my mother's handwriting - or maybe my grandmother's.  There is no credit given so I have no idea where the recipe came from.  They are a little on the sweet side and go great with milk!