Prepare the Apple : Wash, core, and chop your apple into small pieces.
Blend the Base : In a high-speed blender, add the chopped apple, almond milk, and Greek yogurt. Blend on medium speed for 20 seconds until smooth.
Add the Dry Ingredients : Toss in the rolled oats, cinnamon, and vanilla extract. Blend again until the mixture starts to thicken.
Sweeten (If Needed) : If you prefer a sweeter smoothie, add a tablespoon of honey or maple syrup. Blend again for a few seconds.
Chill and Serve –: Drop in the ice cubes and blend one last time until the smoothie reaches a creamy, frothy texture.
Pour and Enjoy : Serve immediately in a tall glass with a sprinkle of cinnamon on top for extra flavor!