Add liquids first. Pour your milk into the blender.
This helps the blades catch everything smoothly.
Layer in the soft stuff. Add the banana, Greek yogurt, nut butter, and vanilla.
Sprinkle in the dry ingredients. Add protein powder, cocoa powder, chia or flax, cinnamon, and a tiny pinch of salt.
Adjust thickness. Toss in a few ice cubes if you’re using a fresh banana or want a frosty texture.
Blend until silky. Start low, then increase to high for 30–45 seconds. Scrape the sides if needed and blend again.
Taste and tweak. If it’s not sweet enough, add a drizzle of honey or maple syrup. If it’s too thick, add a splash more milk.
Serve immediately. Pour into a chilled glass or a to-go tumbler and enjoy while cold.