Preheat your oven to 180°C (350°F) and line a baking tray with parchment paper.
Grate the paste and transfer it to a mixing bowl.
Add the egg white and combine with a spatula or wooden spoon until there are no more lumps.
Use your hands to knead lightly and double-check the texture --- not too wet.
Using your index finger, take about 1/2-teaspoon of the almond cookie dough.
Roll it into a ball using your palms and place it on the prepared baking tray.
Push the top of the ball with your finger to flatten it a bit.
Repeat until the dough is finished.
Keep some distance between the almond paste cookies when you arrange them on the tray.
Place in the lower part of the oven for 12 to 15 minutes or when they turn golden.
Remove from the oven and transfer them to a rack to cool.
Dust your Swedish almond paste cookies with powdered sugar, if preferred, then serve.