Gather all ingredients and a blender.

In the blender, combine milk, heavy cream, sweetener, and the seeds from the vanilla bean (add the pod for extra flavor).

Add ice cubes and blend until smooth and creamy.

Taste and adjust sweetness if needed; blend again if adding more sweetener.

Whip additional heavy cream in a separate bowl until soft peaks form; mix in vanilla extract.

Pour frappuccino into a glass, top generously with whipped cream, and garnish with crushed vanilla bean or chocolate shavings.