In a saucepan, combine all the jam ingredients.

Cook over medium heat for 15-20 minutes, or until it thickens. If you have a thermometer, you can check the temperature. It should reach 220°F (105°C) when it's done.

Remove from the heat and blend with an immersion blender or transfer into a stand blender and blend until smooth. Then, pass the mixture through a fine-mesh sieve into a bowl and cover it with plastic wrap so it touches the surface of the jam. Refrigerate for 4-6 hours or overnight.

Place the jam into a piping bag before assembling the cookies.

In a bowl, combine the flour, almond flour, and salt.

In another bowl, add the powdered sugar, butter, and vanilla. Beat with a hand mixer just until well combined and creamy. Do not beat it until it's fluffy.

Add the dry ingredients and beat until just combined. Wrap the dough in plastic wrap and freeze for 30 minutes or until it’s well chilled but still pliable. Alternatively, refrigerate overnight.

Roll out the dough on a floured surface or between two parchment papers until it's ⅙" (3-4 mm) thick. Cut out 52 cookies using a 2" (5cm) round cookie cutter. Collect the cookie dough scraps and reroll them when needed. Then, take 26 cookies and cut out small round windows in the middle. You can use a round, star, or whatever shape cookie cutter you prefer. I used a ½” (1cm) round cookie cutter.

Place the cookies onto baking sheets lined with parchment paper. The cookies won't spread a lot, so you don't need to place them far apart.

Bake in batches for 10 minutes or until they start to turn golden around the edges. The cookies themselves should stay pale.

Allow the cookies to rest on the baking sheet for 5 minutes before transferring them onto a wire rack to cool to room temperature.

Once the cookies are at room temperature, place the ones with cut-out windows on parchment paper and dust the tops with powdered sugar.

Take the rest of the cookies and turn them bottom side up, then pipe 2 teaspoon of cranberry jam in the middle of each.

Place the sugar-dusted cookies on top so the jam is visible through the windows, and serve.