In a food processor, add the sugar and almonds. Blend them until the almonds are finely ground.
Next, gradually add the egg white and almond extract, and continue blending until you get a smooth dough. The dough will have a slightly sticky texture.
Prepare a baking tray by lining it with parchment paper.
Transfer the cookie dough to a pastry bag fitted with a large star tip and space each cookie evenly on the prepared baking tray. Remember to make small divots in the center of the cookies.
Transfer the baking tray to the refrigerator for a night or at least six hours. You can also place it in the freezer for an hour if you’re short on time.
Take the baking tray out of the refrigerator and let it sit at room temperature for about 10 minutes.
Place the baking tray in a preheated oven (400 degrees F) and bake for 15 to 20 minutes until the edges brown slightly.
For the Apricot Jam
While the cookies are baking, place a shallow pan over medium-high heat. Add sugar and the apricots, bring the mixture to a simmer for 12 to 15 minutes, then add lemon juice and take the jam off the heat.
Allow the jam to cool and store it in a jar.
Once the cookies are done, remove from oven and allow to cool. Spoon some jam in the middle and serve immediately or reserve in refrigerator for future use.