Roll out dough on lightly floured cool surface to about ¼ of an inch thickness.
Punch out 3 inch rounds (I used THIS punch set). You should get about 12-14 cookies.
Brush off excess flour with pastry brush, transfer rounds carefully to the prepared baking sheet.
Bake for 10-12 minutes. They will be soft when finished, very lightly golden on the bottoms and sides. Allow to cool on pan before moving, as they break and tear easily until set.
Set aside until assembly.
Marshmallow Filling / Italian Meringue Method
Start by mixing gelatin with ¼ cup cool water in small bowl.
Place egg whites into a very clean bowl of a stand mixer. Do not turn it on yet.
In a small saucepan, stir to combine ¼ cup water with corn syrup, honey, and sugar over medium heat.
Using a candy thermometer (I love THIS one), cook until the syrup reached about 200 degrees F/ 93 C.
Turn on mixer to medium-high setting for egg whites while continuing to cook sugar syrup.
Once the syrup reaches 240F/115C, CAREFULLY remove pan from heat and take to stand mixer. Add gelatin and whisk until smooth.
Keep mixing on medium speed.
Add vanilla to egg whites.
Very slowly pour mixture into stiffened egg whites. Pour at the edge of the egg whites, not on the beaters, and not down the side of the bowl. This may take some practice.
Increase speed to high and mix for 6-7 minutes. The mixture will be warm, but cooled and at least doubled in volume.
I used sky blue, navy, black, and fuschia gel coloring after splitting the recipe into smaller bowls when around 95-100 degrees F cooled before the target of 90F for glazing. Read the Mirror Glaze Recipe post if that is confusing to understand. It explains the process very well.
To get the silver speckles, I applied a small amount of the silver food coloring to a pastry brush and flicked it on the tops.
Once glazed, trim as necessary, chill for at least 15 minutes. Serve at room temperature.
Enjoy! Find more at SouthernFATTY.com!
Notes
Recipe adapted from Chef David Guas's homemade Moon Pie.
Recipe by Southern FATTY at https://www.southernfatty.com/mirror-glazed-moon-pies/