Boston Cream Croissants (Print Version)

Croissants filled with smooth custard and finished with chocolate ganache. A simple and delightful dessert inspired by Boston cream pie.

# Ingredients:

→ Vanilla Cream Filling

01 - 1/4 cup sugar, granulated
02 - Pinch of table salt
03 - 1 1/2 tsp vanilla flavor extract
04 - 1 cup half-and-half or light cream
05 - 2 tbsp butter, cut into cubes
06 - 3 egg yolks (room temp)
07 - 1 1/2 tbsp cornstarch

→ Croissant Base

08 - Three or four croissants, 5×4 inches each
09 - 3-4 tbsp chopped nuts (walnuts, pecans, or almonds)

→ Chocolate Coating

10 - 3 oz bittersweet or semi-sweet chocolate bar, chopped finely
11 - 1 tbsp light corn syrup (optional for shine)
12 - 1/4 cup half-and-half or light cream

# Steps:

01 - Take a wooden skewer and carefully poke two holes (on opposite sides) in the top-back area of the croissants. Wiggle the skewer to hollow out the inside. Set them aside for now.
02 - Mix together sugar, egg yolks, salt, and cornstarch in a small saucepan. Combine until smooth and lump-free. Slowly whisk in the light cream until it's all blended.
03 - Place the saucepan over medium heat. Constantly whisk the mixture as it cooks to prevent sticking and lumps. Wait until it thickens up and looks smooth, which should take 4-6 minutes. Take it off the heat right away.
04 - Drop in butter cubes a bit at a time, whisking fully before adding another. Add vanilla last and mix thoroughly. For a smoother texture, optional: press through a fine strainer.
05 - Fill a piping bag with the custard (use a long nozzle). Push the tip into the holes in each croissant. Squeeze gently until filled, aiming for about one-third of the custard per croissant.
06 - In a small pot (don’t turn on the heat yet), stir together light cream and corn syrup. Move to medium-low heat and whisk constantly until warm. Take it off the heat, toss in chopped chocolate, and stir until it’s melted. Let it rest for a couple of minutes.
07 - Spoon ganache over the tops of the custard-filled croissants. Sprinkle the chopped nuts for garnish. Refrigerate for an hour before serving.

# Helpful Notes:

01 - If you're using chocolate chips, increase to 4 oz and cut light cream to just under 3 tbsp. Reduce corn syrup to 1 1/2 tsp.
02 - Half-and-half can be swapped out for heavy cream, but whole milk doesn't work well.
03 - If your ganache feels too runny, stick it in the fridge for 15 minutes before glazing.