Prepare the yogurt mixture:

Line a large baking sheet with parchment paper. Place the freeze-dried blueberries in a zip-top plastic bag and crush them with a rolling pin until they form a fine powder.

Transfer the blueberry powder to a medium bowl, then stir in the Greek yogurt, vanilla extract, lemon zest, cardamom (or cinnamon), and salt. Mix until smooth.

Add the fresh blueberries:

Gently fold the fresh blueberries into the yogurt mixture, making sure they are well coated.

Form the bites:

Using a fork, pick up one blueberry at a time, tapping off any excess yogurt. Use a wooden pick to push the blueberry off the fork and onto the prepared baking sheet. Repeat with the remaining blueberries, leaving a little space between each one.

Freeze the bites:

Place the baking sheet in the freezer and let the blueberry bites freeze for at least 2 hours, or up to 24 hours. This will ensure the bites are completely set and ready to enjoy.

Serve and enjoy:

Remove the yogurt bites from the freezer 5 minutes before serving to let them soften slightly for the best texture. Enjoy these bites as a cool, refreshing snack or dessert.