This is my recipe, there are no exact quantities as I don’t use them…
Get some amaretti biscuits, you can use sponge fingers if you prefer.
Make up some espresso coffee, using decent espresso coffee. Add some Amaretto spirit. For those that avoid spirits, then just using coffee will be fine.
Dunk the amaretti into the coffee/Amaretto mix, and place into small bowls (or one big bowl).
Mix (say) three egg yolks with some caster sugar (say 3 oz), mix in a tub of Mascarpone cheese.
Spoon the mixture onto the biscuits.
Now you could do a layer of biscuits, a layer of the Mascarpone mixture, but it depends more on what you are serving them in.
Leave in the fridge to set.
Once set, dust with cocoa.