Combine flour, sugar and salt in a food processor.
Pulse for 10 seconds to combine.
Add in 12 tablespoons of butter and pulse for another 30 seconds until butter is in small bits the size of a pea.
With the food processor on, slowly drizzle in cold water.
Mix until the dough comes together in a ball.
Lightly roll out the dough between to pieces of parchment paper then wrap tightly in plastic wrap.
Chill flat in the refrigerator for 1 hour up to 24 hours.
When ready to bake, remove from the fridge and let it sit on the counter for 5 minutes.
Roll dough out on a lightly floured surface into a rectangle 1/2 inch thick.
Use homemade template to cut out 12 ghost shapes. You may need to reroll out the dough.
Place 6 shapes onto a parchment lined baking sheet.
Spoon about 1-2 tablespoons of jam into the center of the shape, keeping away from the edges.
Top with a second dough shape and press down the edges with a fork to seal.
Brush with egg wash and chill until oven is fully preheated.
Preheat oven to 400 degrees.
Bake for 25-30 minutes or lightly golden brown.
Cool completely before glazing.