Place the almond flour and sugar into the mixer bowl and stir until combined, then add the coarse flour. Cut the cold butter into 1 cm cubes and add to the bowl along with cinnamon, salt, whole egg and egg yolk. Mix everything together for a few minutes until it begins to combine and form into a dough.
Divide the dough into 4 equal parts, wrap with cling film and put for an hour in the refrigerator to rest. Preheat the oven to 160°C. Roll the dough on a floured surface until 3-4 mm thick. Cut out shapes as desired, and make a round hole or shape in the middle. Bake the cookies for 9-10 minutes at 160 °C. (The cookies must remain white and just start to turn golden on the bottom).
When the cookies are completely cooled, spread jam on the bottom parts leaving the edges empty. Dust the top parts with icing sugar before connecting them together.