01 -
Get a shallow bowl and pour in the brewed coffee. Stir in the almond extract along with the rum, if you like. Set it to the side.
02 -
Put egg whites in the bowl for your stand mixer, using the whisk attachment. Slowly drizzle in 1/3 cup of sugar while beating on high. It should take about 3 minutes to get stiff peaks. Pour the whipped whites into a big bowl and scrape the bowl out clean with a rubber spatula.
03 -
Drop the egg yolks and the rest of the sugar (1/3 cup) into your mixer bowl. Whisk them on high for around 3 minutes until they turn light and fluffy. Mix in the mascarpone next, followed by the pistachio spread, vanilla extract, and almond extract. Blend it until smooth.
04 -
Take half the mascarpone mixture and gently fold it into the egg whites with a spatula. Once it's mostly mixed, add the rest of the mascarpone mixture and gently fold again. Be careful not to stir too hard or lose the fluffiness.
05 -
Quickly dip both sides of the lady fingers in the coffee mixture. Lay a single layer of them snugly in a 9x9-inch pan. Spread half the mascarpone cream on top of this layer. Repeat with another layer of dipped lady fingers and finish by smoothing the remaining mascarpone cream on top.
06 -
Sprinkle the finely chopped pistachios on the surface. Let it sit in the fridge for at least 4 hours (or overnight) before you dig in!