Pineapple Tiramisu with Ginger, Yuzu and Whipped Cream

In my family we call this dessert ‘Beattie’s thing’, Beattie being my beloved 92 year-old aunt. It has all the ingredients of an Irish dessert from the 1970s: whipped cream, crushed biscuits with a hint of salt, acidic fruits ... And all that in 30 minutes flat! This is my updated version with yuzu (an Asian citrus fruit), ginger and a huge kiss to my beloved aunt.