Grind freeze dried raspberries into dust. (A spice or coffee grinder works great for this!)
Sift powder at least one time to remove the seeds
Chop white chocolate into small pieces.
In microwave, heat heavy cream until hot. Do not boil!
Pour hot cream over chocolate and let sit for a few minutes.
Add in the fruit powder and mix until well combined. Use more powder for a stronger raspberry flavor and deeper color.
If needed, microwave in 5 second intervals until fully melted and smooth.
Cool to room temperature.
Scoop small balls onto lined sheet pan, and cool further.
Roll each ball between the palm of your hands until smooth.
Roll each formed ball in remaining fruit powder until completely coated. Toss gently between fingers to shake off extra powder. Roll a couple more times to ensure powder is fully attached to chocolate.
Serve at room temperature.
Notes
Truffles should be refrigerated in airtight container, or frozen for up to 3 months. Serve at room temperature.