Mix the dry ingredients

• Combine the all-purpose flour, almond flour and salt in a bowl.

Beat butter and sugar

• Beat the butter and sugar until fluffy.
• Add the vanilla extract, egg and lemon zest, then mix until combined.

Make the dough

• Combine the wet and dry mixtures until a dough forms.
• Shape the dough into a disk, wrap it and chill.

Preheat the oven

• Preheat the oven to 180 °C and line a baking sheet.

Cut out the ghost shapes

• Roll the dough to about 6 mm thick.
• Cut out heart shapes with the cookie cutter, then cut each shape in half.
• Use the small end of the piping tip for the eyes and the larger opening for the mouth, gently tilting and pressing the cookies to give them a ghost look.

Bake the cookies

• Bake until golden.

Cool

• Cool the cookies on a wire rack.

Dust and fill

• Dust the cookies with powdered sugar.
• Spread jam on the plain cookies and sandwich them together with the ghost-topped ones.