In the bowl of a stand mixer, beat your butter until soft and airy. Add your egg and extract. beat until combined. Mixture should look like cottage cheese.
Over the bowl, sift in your flour, salt and powdered sugar. Using a whisk attachment whisk your batter until combined.
Line a cookie sheet with parchment paper.
Using a tablespoon, carefully measure out your cookies. Roll each cookie into a ball using the palms of your hand. You should get 24 cookies.
Place cookies on prepared cookie sheet
using your thumb press a hole (or indent) into the center of each cookie.
fill each cookie with a ¼ teaspoon of apricot jam.
Bake cookies at 325 degrees for 10 minutes. they should still look pale in color.
take out and let cool