Melt butter, let it cool until handwarm, then set aside.
In a large bowl, combine flour, sugar, and salt. In a separate bowl, whisk eggs and yolks, then add to the flour mixture. Slowly pour in melted butter while mixing. Gradually add milk until batter is smooth (not too thick).
Cover the bowl and set aside for 30-45 minutes.
Heat a crêpe pan with butter or oil. Cook crêpes until golden on both sides, about 7 inches in diameter. Stack on a plate and refrigerate for 1 hour.
Meanwhile, prepare the cream: mix mascarpone and cream cheese until fluffy. Add confectioners’ sugar, espresso powder, and amaretto. Chill for 30 minutes.
To assemble, spread a thin layer of cream on the first crêpe, dust with cocoa powder, and place another crêpe on top. Repeat layering until desired height. Spread remaining cream on top or use a piping bag.
Refrigerate for 30 minutes, dust with cocoa powder, then serve. Store leftovers covered in the fridge. If liquid appears around the cake, simply remove and enjoy!