Place the oat milk, protein powder, maple syrup, vanilla extract, xanthan gum, and salt into a high-speed blender.

Process on high speed for 60 seconds until the mixture is completely smooth and slightly thickened.

Pour the liquid base into a shallow, freezer-safe metal or glass container.

Gently fold in the chopped berries using a spatula to ensure even distribution.

Cover the surface of the mixture directly with parchment paper or plastic wrap to minimize ice crystal formation.

Seal with an airtight lid and place in the coldest part of the freezer.

Freeze for a minimum of 6 hours.

Remove from the freezer and let temper at room temperature for 10 to 15 minutes before scooping.