Bring the mixture to a boil and cook, stirring continuously, over medium heat until it thickens. Stir occasionally and keep cooking for another minute.
Take it off the heat and slowly incorporate a little of the heated mixture into the egg yolks that have been beaten. Put everything back in the pot after that.
Raise heat to low and simmer, stirring occasionally, for another two minutes.
Swiftly take it off the heat and blend in the peanut butter, unsalted butter, and vanilla essence.
After the pie crust has cooled to room temperature, pour the filling into it.
Chill the pie for at least three hours, or until it sets, after it has cooled.
Whip the powdered sugar and heavy cream to soft peaks just before serving. After the pie has cooled, top it with the whipped cream.
Chop some peanuts or shave some chocolate on top if you want.
Changes and Hints
Swap up the regular pie crust with one made from graham crackers or chocolate cookies for a unique touch. Incorporate melted chocolate into the peanut butter mixture before filling the crust for a layered appearance. To further enhance the peanut butter and banana taste profile, you could choose to add sliced bananas to the crust before pouring in the filling.
