Jul 14 2026
RestaurantsUnion Oyster HouseBoston Cream Pie Recipe

Boston Cream Pie Recipe

Inspired by Union Oyster House
Time2h
Serves8

A classic dessert with custard filling.

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Ingredients

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Cake

Chocolate Ganache

Method

Cake Preparation

  1. 1

    Preheat the Oven

    Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.

  2. 2

    Mix Dry Ingredients

    In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.

  3. 3

    Cream Butter and Sugar

    In a large bowl, beat the softened butter and granulated sugar until light and fluffy, about 3-4 minutes.

  4. 4

    Add Eggs and Vanilla

    Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.

  5. 5

    Combine Mixtures

    Gradually add the dry ingredients to the wet mixture, alternating with a splash of milk if necessary, until just combined.

  6. 6

    Bake the Cakes

    Pour the batter evenly into the prepared cake pans. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean.

  7. 7

    Cool the Cakes

    Allow the cakes to cool in the pans for 10 minutes, then transfer to wire racks to cool completely.

Custard Filling Preparation

  1. 8

    Heat Milk

    In a medium saucepan, heat the whole milk over medium heat until it begins to steam but not boil.

  2. 9

    Whisk Egg Yolks and Sugar

    In a bowl, whisk together the egg yolks and granulated sugar until pale and thick.

  3. 10

    Add Cornstarch

    Stir in the cornstarch until fully incorporated.

  4. 11

    Temper the Egg Mixture

    Slowly add the hot milk to the egg mixture, whisking constantly to temper the eggs.

  5. 12

    Thicken the Custard

    Return the mixture to the saucepan and cook over medium heat, stirring constantly until thickened, about 5-7 minutes.

  6. 13

    Finish the Custard

    Remove from heat and stir in the butter and vanilla extract. Let the custard cool to room temperature.

Chocolate Ganache Preparation

  1. 14

    Heat Cream

    In a saucepan, heat the heavy cream over medium heat until it begins to simmer.

  2. 15

    Add Chocolate

    Remove from heat and add the chopped chocolate. Let sit for a minute, then stir until smooth and glossy.

Assembly

  1. 16

    Layer the Cakes

    Place one cake layer on a serving plate. Spread half of the custard filling over the top.

  2. 17

    Add Second Layer

    Top with the second cake layer and spread the remaining custard on top.

  3. 18

    Pour Ganache

    Pour the chocolate ganache over the cake, allowing it to drip down the sides.

  4. 19

    Chill and Serve

    Refrigerate the cake for at least 2 hours to set the ganache before serving.

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