01 -
Grab a wooden skewer and poke holes into both sides near the top back of each croissant. Wiggle it around to create space inside. Place them aside for later use.
02 -
In a small pot, stir together sugar, egg yolks, salt, and cornstarch with a whisk. Slowly add light cream while mixing until smooth.
03 -
Set the pot on medium heat, constantly stirring until the mixture becomes thick and smooth. This should take around 4 to 6 minutes. Take it off the heat right after.
04 -
Whisk in butter pieces one at a time, ensuring each fully melts before adding more. Stir in the vanilla at the end for a flavorful touch.
05 -
Fit a piping bag with a long nozzle tip and add the custard inside. Twist the bag to seal and carefully pipe the filling through the holes into the croissants, using roughly a third of the mixture per croissant.
06 -
Before turning the stove on, mix together light cream and corn syrup in a small pan. Heat over medium-low, stirring constantly until warm. Take the pan off heat, add chopped chocolate, and stir until fully melted. Let it sit for a couple of minutes to thicken slightly.
07 -
Drizzle the melted ganache generously over filled croissants. Finally, sprinkle the nuts on top for a crunchy finish.
08 -
Pop the filled croissants in the fridge and let them chill for an hour before serving.