Start by gathering fresh or frozen blackberries, a ripe banana, your choice of protein powder, and almond milk or your preferred liquid, such as oat or coconut milk.

Place the blackberries, banana, protein powder, and almond milk into the blender. Blend on high for about 30-60 seconds until smooth and creamy.

Check the thickness; add more almond milk if too thick, or ice cubes if too thin, and blend again to achieve the perfect consistency.

Pour the smoothie into a glass, garnish with whole blackberries or chia seeds if desired, and enjoy!