Am I the only person who thinks that Boston Cream Pie is underrated? When it comes to classic cake flavors, I’ve always been partial to a good yellow cake with chocolate frosting. However, when you pair that with a creamy, silky custard filling? That’s truly an elite combo!

The idea for this biscoff boston cream pie came to me when I was brainstorming ways to give this classic dessert a modern update. The addition of luxurious caramel notes and warm spices in the biscoff-enriched pastry cream and ganache (along with the brown butter cake layers) really elevate traditional Boston Cream Pie and serve as my contribution to the trendy Biscoff craze!

Ingredients

For the Cake:

  • 1 box Betty Crocker Butter Recipe Yellow Cake Mix
  • 1 cup Whole milk
  • 4 Eggs
  • 1 tsp Vanilla
  • 2 sticks Unsalted butter (to be browned)
  • ¼ tsp Salt

For the Biscoff Pastry Cream:

  • 2 cups Whole milk
  • ¼ cup Granulated sugar
  • ⅔ cup Biscoff spread
  • 3 tbsp Cornstarch
  • ¼ tsp Kosher salt
  • 4 large Egg yolks (cold)
  • 2 tsp Vanilla extract
  • 1 tbsp Unsalted butter

For the Biscoff Ganache:

  • 6 oz Semi-sweet baking chocolate (chopped)
  • ½ cup Heavy cream
  • ⅓ cup Biscoff spread
  • 1 tbsp Unsalted butter
  • A pinch of Salt

For the Garnish:

  • Biscoff spread (melted for drizzling)
  • Biscoff cookie crumbs (about 4 cookies, crushed)

Instructions

1. Prep the Pans & Brown the Butter

  • Preheat your oven according to the cake mix box instructions.
  • Prepare your pans: Butter two 8-inch circular cake pans, line the bottoms with parchment paper, and butter the parchment. This double-layer approach ensures a clean release!
  • Brown the butter: In a small saucepan over medium heat, melt the 2 sticks of butter. Continue cooking, swirling the pan occasionally. The butter will foam, then turn a deep golden brown with a nutty aroma. Once you see brown bits at the bottom, remove from heat immediately and let it cool slightly.

2. Bake the Cake Layers

  • In a large bowl, combine the cake mix, milk, eggs, vanilla, and salt.
  • Slowly pour in the browned butter (make sure to scrape in all those delicious toasted bits!).
  • Mix until just combined. Divide the batter evenly between the two prepared pans.
  • Bake until a toothpick comes out clean.
  • Pro Tip: Take the cakes out of the pan while still warm. If you allow them to cool completely in the pan, they become much harder to remove without breaking. Place them on a wire rack to finish cooling.

3. Make the Biscoff Pastry Cream

  • In a medium saucepan, whisk together the milk, sugar, Biscoff spread, cornstarch, and salt. Heat over medium, stirring constantly.
  • In a separate small bowl, lightly whisk the egg yolks.
  • Temper the eggs: Slowly pour about half a cup of the warm milk mixture into the yolks while whisking vigorously (this prevents scrambled eggs!).
  • Pour the yolk mixture back into the saucepan. Continue to cook, whisking constantly, until the pastry cream thickens and begins to bubble.
  • Remove from heat and stir in the vanilla and butter.
  • Transfer to a bowl and cover with plastic wrap (press the wrap directly onto the surface of the cream to prevent a skin from forming). Chill completely before using.

4. Whip Up the Biscoff Ganache

  • Place the chopped chocolate, Biscoff spread, butter, and salt in a heat-proof bowl.
  • In a small saucepan, heat the heavy cream over medium low heat until it just begins to simmer (do not let it boil).
  • Pour the hot cream over the chocolate mixture. Let it sit for 5 minutes, then whisk until silky and smooth.

5. Assemble the Masterpiece

  • Place one cake layer on your serving plate.
  • Spread the chilled Biscoff pastry cream generously over the top, leaving a tiny bit of room at the edges.
  • Place the second cake layer on top.
  • Pour the Biscoff ganache over the center of the top layer, letting it drip artfully down the sides.
  • The Finishing Touch: Warm up a little extra Biscoff spread until it’s fluid, then drizzle it over the ganache. Sprinkle the Biscoff cookie crumbs over the top just before serving for that perfect crunch.

Storage Tip: Because of the pastry cream, keep this beauty in the fridge. It actually tastes even better after an hour or two when the flavors have had a chance to mingle!

Posted in

Leave a comment