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Boston Cream Pie Bars with Thick Chocolate

Boston Cream Pie Bars with Thick Chocolate


  • Author: easysweetmeal
  • Total Time: 55 minutes
  • Yield: 12 bars 1x

Description

Vanilla cake base + silky custard filling + glossy chocolate ganache—all the classic flavors in easy-to-serve squares!


Ingredients

Scale
  • 1 cup all-purpose flour

  • 1 tsp baking powder

  • ¼ tsp salt

  • ½ cup unsalted butter, softened

  • 1 cup granulated sugar

  • 2 large eggs

  • 1 tsp vanilla extract

  • ½ cup milk

  • 1 cup heavy whipping cream

  • ¼ cup powdered sugar

  • 1 tsp vanilla extract

  • 1 tbsp cornstarch

  • 1 tbsp cold water (to make slurry)

  • 1 cup semi-sweet chocolate chips

  • ½ cup heavy cream


Instructions

Step 1: Bake the Cake Layer

  1. Preheat your oven to 350°F (175°C). Grease and line an 8×8-inch baking pan with parchment paper.

  2. Mix Dry Ingredients: In a bowl, whisk together flour, baking powder, and salt.

  3. Cream Butter & Sugar: In a large bowl, beat butter and sugar until light and fluffy.

  4. Add Wet Ingredients: Mix in eggs one at a time, then stir in vanilla.

  5. Combine Mixtures: Alternate adding dry ingredients and milk, stirring just until combined.

  6. Bake: Pour batter into the prepared pan. Bake for 25–30 minutes, or until a toothpick inserted comes out clean. Let cool in the pan.

Step 2: Prepare the Cream Filling

  1. Whip Cream: In a bowl, beat heavy cream, powdered sugar, and vanilla until soft peaks form.

  2. Make Custard: In a saucepan, heat remaining cream until simmering. Mix cornstarch with cold water to form a slurry and whisk it in. Stir until thickened (1–2 minutes), then cool slightly.

  3. Fold Together: Gently fold cooled custard into whipped cream. Chill until ready to use.

Step 3: Assemble the Bars

  1. Layer Cream: Spread cream filling evenly over the cooled cake layer.

  2. Chill: Refrigerate for 1 hour to firm up.

Step 4: Make Chocolate Ganache

  1. Heat Cream: In a small saucepan, bring cream just to a simmer.

  2. Add Chocolate: Pour hot cream over chocolate chips in a bowl. Let sit for 1 minute, then stir until silky and smooth.

Step 5: Top and Serve

  1. Finish Bars: Pour ganache over the cream layer. Use a spatula to spread evenly.

  2. Final Chill: Return to the fridge for at least 1 hour.

  3. Slice & Serve: Cut into squares and serve cold for clean, gorgeous layers.

  • Prep Time: 25 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baked
  • Cuisine: American