A twist on a classic tiramisu dessert with creamy matcha mascarpone cream and soft, spongey ladyfingers soaked in matcha for plenty of amazing green tea flavour.
Fill a pot with about 1" of water and bring it to a boil. In a large mixing bowl that fits into the pot perfectly without touching the water, whisk together the egg yolks and granulated sugar.
When the water starts boiling, turn off the heat and place the bowl on top of the pot to create a double boiler. Continuously whisk the egg mixture until the sugar dissolves and it becomes pale in colour, about 5 minutes.
Remove the bowl from the pot and immediately add in the softened mascarpone cheese. Whisk together until smooth and silky. Set aside.
In a separate mixing bowl, add the whipping cream, matcha powder, and vanilla extract. Use an electric hand mixer fitted with a whisk attachment to whip the cream until it becomes medium peaks. It should have structure and leave trails but still fluid and not completely stiff peaks.
Add the whipped cream to the mascarpone mixture and fold together with a spatula until no streaks remain. Set aside.
Matcha Soak
In a shallow bowl, combine matcha powder, granulated sugar, and hot water. Use a matcha whisk, milk frother, or regular whisk to whisk until slightly frothy, about 30 seconds.
Very briefly dip a ladyfinger in the matcha soak just enough to coat both sides. Let any excess drip off. Do NOT let it sit in the liquid or soak all the way through or it will quickly turn into mush. Place the ladyfinger in the bottom of a serving container of your choice. Repeat until you have a flat, even layer of ladyfingers.
Add a generous layer of mascarpone cream on top of the ladyfingers and use a spatula to smooth it evenly.
Repeat with another layer of soaked ladyfingers and another layer of mascarpone cream.
Cover and chill your matcha tiramisu in the fridge for at least 4 hours or overnight, preferably, to allow the cream to firm up and ladyfingers to soften.
Topping
Right before serving, sprinkle the top of your tiramisu with matcha powder.