For the crust:
- Add the flour, salt, and sugar to a food processor and pulse and few times to blend everything together.
- Add in the cubed cold butter and pulse until the butter is pea and lima bean-sized. Add the bourbon and water and mix just enough so it lightly comes together. It will still look loose but will stick together when you squeeze a chunk of it in your fist.
- Pour the dough out onto a well-floured surface and lightly knead until it forms a disk. Divide it into two equal disks, wrap in plastic wrap, and chill for at least 1 hour.
To assemble the pop-tarts:
- Roll out the doughs into about a 10x14 sheets.
- Using a rectangle cookie cutter, or a rectangle stencil, cut out 6 pieces out of each layer, 12 rectangles in total.
- Place half of the pieces on a lined baking sheet and add 1-2 tablespoons of the jam.
- Dip your finger in a bit of water and run it around the outline of the rectangle (this will help it meld to top layer).
- Place the remaining pieces on top and seal using a fork to push down around the border. Poke a few holes in the dough for the steam to release.
- Repeat with the remaining rectangles.
- Whisk together the egg and 1 teaspoon water and brush over pop-tarts.
- Bake at 350 degrees for about 20 minutes or until light brown.
For the glaze:
- Mix together the ingredients with a fork or a whisk, if the mixture is to thick add a little more water until you get a consistency you like.
- Using a spoon pour over cooled pop-tarts and eat up!!