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Boston Cream Pie Recipe

Try your hand at making the state dessert of Massachusetts to get your travelers excited about a trip to Merrimack Valley, featured in our recent article From Mills to Minutemen in Merrimack Valley.


Cake Ingredients:

6 Tbsp. butter, softened

2 Tbsp. all-purpose flour

1-1/2 cups cake flour

2 tsp. baking powder

1/4 tsp. salt

3/4 cup white sugar

2 eggs

1 tsp. vanilla extract

1/2 cup milk


Custard Filling Ingredients:

1/2 cup cream

1/2 cup milk, divided

1/4 cup sugar

pinch of salt

4 tsp. cornstarch

2 eggs

1/2 tsp. vanilla

Chocolate Frosting Ingredients:

3 (1 ounce) squares of semisweet chocolate

2 Tbsp. butter

1/4 cup light cream

1/2 tsp. vanilla extract

1/2 cup confectioner’s sugar



  1. Preheat oven to 375 degrees F (190 degrees C). Grease and flour two 9 inch round cake pans. Sift the all-purpose flour, cake flour, baking powder and salt together and set aside.
  2. In a deep bowl cream 6 tablespoons of the butter with 3/4 cup sugar until light and fluffy. Beat in the 2 eggs, one at a time, then beat in the 1 teaspoon vanilla extract. Add the flour mixture alternately with the 1/2 cup of the milk in 3 additions, Beating the batter smooth after each addition. Divide the batter between the 2 prepared pans.
  3. Bake at 375 degrees F (190 degrees C) for 15 minutes or until cakes begin to shrink away from the sides of the pans and centers spring back when lightly touched. Turn the cakes onto wire racks to cool.
  4. To Make The Filling: Combine the 1/2 cup light cream with 1/4 cup of the milk and cook over medium heat until bubbles begin to form around the edge of the pan. Immediately add 1/4 cup of the sugar and the salt, stirring until dissolved. Remove the pan from the heat.
  5. In a small bowl, combine 1/4 cup of the milk with the cornstarch and whisk to remove lumps. Whisk in the 2 eggs. Add the hot cream mixture in a thin stream, whisking constantly. Return to the mixture to the saucepan, bring to a boil, and cook over low heat, stirring constantly, until the custard thickens and is smooth (about 5 minutes). Remove from heat and stir in the 1/2 teaspoon vanilla and allow to cool to room temperature.
  6. To Make The Chocolate Frosting: In a heavy saucepan over low heat, stir the chocolate pieces and 2 tablespoons butter until they are completely melted. Remove from the heat and, stirring constantly, add the 1/4 cup light cream in a thin steady stream. When mixture is smooth, stir in the confectioners’ sugar and beat vigorously. Stir in the 1/2 teaspoon vanilla.
  7. To Assemble Cake: Spread the cooled filling over one the cooled cakes and place the second cake on top. Pour the chocolate frosting evenly over the top allowing it to spill down the sides.


Recipe Courtesy

Photo by By Francisco Seoane Perez – originally posted to Flickr as Boston cream pie, CC BY 2.0,