Add blackberries, yogurt, and milk to a blender and blend for 1 minute, or until smooth.
1/3 cup blackberries, 1/3 cup Greek yogurt, 1/4 cup milk
Pour blended mixture into a small jar or bowl. Add chia seeds and protein powder, then whisk until combined. (You can also blend both of these ingredients into the base, too!)
1 scoop protein powder, 2 tablespoons chia seeds
Cover container and place in the refrigerator for at least 4 hours, or until set. Stir before serving and enjoy!