Adding one
cup of the cream mixture at a time to the peanut butter mixture, whisk together until all ingredients are combined.
As soon as cream mixture reaches a simmer, remove from heat and, whisking constantly, very gradually add one -
third of cream mixture to egg mixture.
Pour 1/4
of the cream mixture into the egg yolk and whisk to combine, add another 1/4 of the cream and finally all of the cream.
Spoon one - third
of the cream mixture on top of the ladyfingers, then use a rubber spatula or spreading knife to cover the top evenly, all the way to the edges.
Temper the cream mixture into the eggs and sugar by gradually adding small amounts, until about 1/3
of the cream mixture has been added.
Add 1/4 cup
of cream mixture (you can eyeball this measurement) to the jar of a blender, along with the roasted plums and their juices.
Using a measuring jug, scoop out around 1/2 cup
of the cream mixture and beat into the egg yolks to slacken them.