This can be pretty much made with any berries. Also, I don't use eggs (I learned this from my mother and she preferred this without eggs). You can replace the Quark with Greek yoghurt but I find Quark much softer to the taste. Also, my mother is diabetic and this recipe doesn't contain a lot of sugar. It comes naturally from the fruits —MarieGlobetrotter
Wash all the blackberries. Put 400g aside for the sauce
Beat together the mascarpone, quark and sugar until creamy
In a separate bowl, whipe the cream to stiff peaks. Gently fold the whipping cream in the mascarpone-quark mixture
Dip the ladyfinger in the espresso and arrange the biscuits in the bottomg of a baking dish. Spoon 1/3 of the mascarpone-quark mixture on top then cover with some of the blackberries.
Add another layer of mascarpone then a layer of lady fingers dipped into espresso. FinIsh with a layer of mascarpone-quark and some blackberries. Set in the fridge for the tiramisu to set. It will take about an hour
For the blackberry sauce, simply puree the remaining blackberries with the vanilla extract. Once the tiramisu is ready, serve it with the sauce. Enjoy!