Step 1: Blend the Base
In a blender, combine the banana, milk, coffee (if using), ice, vanilla ice cream, chocolate syrup, and strawberry syrup (or strawberries).
Blend until smooth and creamy. Adjust consistency by adding more ice for thickness or more milk to thin it out.
Step 2: Assemble the Frappuccino
Pour the frappuccino into a tall glass.
Top with a generous swirl of whipped cream.
Step 3: Add Toppings
Drizzle chocolate syrup and strawberry syrup over the whipped cream.
Sprinkle with crushed nuts for a banana split touch.
Add a maraschino cherry on top for a picture-perfect finish.