Prep your banana: If using a fresh banana, peel and break it into chunks.
For extra creaminess, use a frozen banana.
Layer the blender: Add milk first, then oats, banana, cocoa powder, vanilla, nut butter, salt, and any add-ins. Top with ice.
Blend until smooth: Start low, then increase to high for 30–45 seconds, or until the oats are fully broken down and the texture is silky.
Taste and adjust: If you want it sweeter, add honey or maple syrup. For a thicker texture, add a few more ice cubes or a bit more oats and blend again.
Serve immediately: Pour into a glass and enjoy while cold and creamy.
Garnish with a dusting of cocoa powder or a few chocolate shavings if you like.