Step 1: Place heavy cream, sugar and vanilla in a mixing bowl. Using an electric mixer, whip ingredients until stiff peaks form. Mix in mascarpone cheese and set aside.
Step 2: Dip lady fingers into prepared green tea. Line the bottom of an 8x8 baking dish with saturated lady fingers.
Step 3: Using a spatula, make take your cream mixture and spread a layer on top of the lady fingers.
Step 4: Add another layer of tea-soaked lady fingers on top of your cream layer. Then, add another layer of the cream mixture.
Step 5: Dust the top of your tiramisu with matcha powder. Sprinkle with raspberries to garnish.
Step 6: Refrigerate for a minimum of 3 hours then serve.