Prepare the Strawberries: In a blender, add 2 cups of fresh strawberries, hulled and halved. Blend until smooth to create a strawberry puree.
Blend the Ingredients: To the blender, add 1 cup of milk, 1 cup of ice, 3 tablespoons of sugar, and 1 teaspoon of vanilla extract. Blend on high speed until all ingredients are well combined and smooth. This should take about 30 seconds.
Check Consistency: If the mixture is too thick, feel free to add a splash more milk. If it's too thin, add a few more ice cubes. Blend until you reach your desired consistency.
Serve: Pour the strawberry mixture into a tall glass, leaving some room for the whipped cream.
Add Whipped Cream: Top the frappuccino with 1/2 cup of whipped cream generously. You can use a piping bag for an elegant presentation.
Garnish: For decoration, add fresh strawberry slices on top and optionally, a sprig of mint. Serve immediately for the best flavor.