01 - In a large mixing bowl, combine flour, granulated sugar, and salt. Incorporate the cold, cubed butter by cutting it into the flour with a pastry blender or using fingertips until a coarse, crumbly texture forms.
02 - While mixing, slowly add ice water, one tablespoon at a time, until the dough just holds together. Divide dough, flatten into two discs, wrap in plastic, and chill for at least 30 minutes.
03 - Set oven to 375°F and line a large baking sheet with parchment paper.
04 - On a lightly floured surface, roll out one chilled dough disc to 1/8-inch thickness. Using a ghost-shaped cutter or a knife, cut 16 ghost-shaped pieces.
05 - Arrange 8 shapes on the lined baking sheet. Place 1 tablespoon jam on each, leaving borders clear. Brush edges lightly with water and cover with remaining dough shapes. Seal borders and crimp edges with a fork.
06 - Bake in the preheated oven for 18 to 20 minutes until lightly golden. Allow to cool completely on a wire rack.
07 - Blend powdered sugar, milk, and vanilla extract in a small bowl until smooth and glossy. Spread evenly over cooled ghost pastries.
08 - Apply mini chocolate chips or black decorating gel to create playful ghost faces. Allow the icing to set before serving.