Cream butter and sugar together until light and fluffy (about 2 minutes)
Add egg, extract and salt, stir until combined (about 30 seconds)
Stir in flour and almond meal until combined, scraping the sides of the bowl (about 1 minute)
Wrap and chill dough in fridge for minimum 30 minutes.
On a floured surface or between two pieces of parchment paper, roll out dough until 1/4 inch thick.
Cut with desired shape of cookie cutter. In half of the cut pieces, cut out a window. These will the the tops of your cookies. Transfer to cookie sheets lined with parchment paper, or a greased cookie pan.
It is important that the dough is still chilled before baking. If it has warmed and softened during the rolling process, return cookie sheets to the fridge to chill.
Bake at 350F for 10-14 minutes, depending on the size and shape of the cookies. Keep a close eye on them, and remove from oven when edges are lightly golden.
Cool on pan for 3-5 minutes, and then transfer to a wire rack to completely cool.
When cool, spread bottoms of cookies with strawberry jam, leaving a small jam-less border to account for spreading when the cookies are assembled.
Dust tops of cookies with icing sugar. Assemble and enjoy.