These classic linzer cookies are one of my favorite Christmas cookies! They're lightly dusted with powdered sugar and filled with your favorite fruit jam!
Add the softened butter and powdered sugar to the bowl of a stand mixer fitted with the paddle attachment. Cream the butter and sugar together until smooth.
Add in the egg and vanilla and mix until fully incorporated.
Add in the flour, almond flour, cinnamon, and salt and mix until just combined.
Press the dough into a disc and wrap tightly in plastic wrap. Refrigerate until firm (1-2 hours minimum but up to 24 hours).
On a lightly floured surface, roll out the dough ¼ inch thick and use your linzer cookie cutter to stamp out the cookies. Re-roll and cutout the scraps, making sure to have an even number of tops and bottoms for the cookies.
Place the baking sheet in the freezer for a minimum of 20 minutes (or the fridge for 40 minutes) before baking to allow the cookies to firm back up. This ensures the cookies won't spread during baking.
Bake for 8-10 minutes or until the edges are set. Bake on the middle rack of the oven and rotate the pan halfway through baking for the best results.
Let the cookies cool on the baking sheet for 2-3 minutes, then remove and let them finish cooling on a cooling rack. Let the cookies cool completely before assembling.
Once the cookies are cool, dust the tops of the linzer cookies with powdered sugar.
Then spread the bottom cookies with about 1 teaspoon of your favorite jam and top with the powdered sugar half.
Notes
The cookies themselves will last in an airtight container at room temperature for up to up to a week. However, once they've been filled with jam and dusted with powdered sugar, the cookies will begin to soften and are best eaten within a day or two.