This recipe is so intricate that it literally took me all day to accomplish, but I say it was well worth it. What I did was I baked a sponge sheet cake and using a square fondant cutter, I cut out a bunch of little squares. I made a custard as well and once it was chilled enough, I made sandwiches with the cute out squares and the custard and finally soaked them in a chocolate ganache to make little Boston Cream Pies!

Boston Cream Pie Petit Fours
Sponge Cake
Martha Stewart
- Unsalted butter, for pans
- 3/4 cup all-purpose flour, plus more for pans
- 3/4 cup corn starch
- 6 large eggs, separated
- 1 1/2 teaspoons vanilla extract
- 3/4 cup plus 6 tablespoons granulated sugar
- 1/4 teaspoon salt
Vanilla Custard
Elinor Klivans
- 1 cup whole milk
- 3 large egg yolks
- 1/3 cup granulated sugar
- 4 teaspoons corn starch
- 2 tablespoons unsalted butter, at room temperature
- 1 teaspoon vanilla extract
Chocolate Glaze
Elinor Klivans
- 1/3 cup heavy cream
- 4 tablespoons unsalted butter, cut into 1/2 inch cubes
- 3 tablespoons light corn syrup
- 4 ounces semi-sweet chocolate, finely chopped
- 1 teaspoon vanilla extract
- In a saucepan over medium heat, warm the milk until small bubbles appear around the edges of the pan. Remove from the heat
- In a heatproof bowl, combine the egg yolks, sugar, and cornstarch and whisk until smooth. Slowly whisk in the hot milk until thoroughly blended
- Return the egg-yolk mixture to the saucepan and place over medium heat. Cook, whisking constantly, until the mixture comes to a boil and thickens, about 3 minutes. Continue cooking, stirring constantly for 1 minute longer to cook completely
- Pour the custard through a fine-mesh sieve into a clean bowl. Stir in the butter and vanilla
- Press a piece of plastic wrap directly onto the surface of the custard to prevent a skin from forming and poke a few holes in the plastic with the tip of a sharp knife to allow steam to escape. Refrigerate until well chilled, at least 2 hours or overnight
- Preheat the oven to 350° F. Butter the bottom and sides of an 11-by-17-inch rimmed baking sheet and a 9×9″ square baking pan. Line the bottom of each pan with parchment paper, and butter again. Flour the pans, and set aside
- In a small bowl, sift together the flour and cornstarch; set aside
- In the bowl of an electric mixer fitted with the whisk attachment, beat egg yolks, vanilla, and 3/4 cup sugar on high until thick and pale, about 3 minutes. Transfer egg-yolk mixture to a large bowl. Wash and dry the mixer bowl and the whisk attachment
- Combine the egg whites and salt in the mixer bowl, and beat on medium speed until soft peaks form, about 1 1/2 minutes. With the mixer running, slowly add the remaining 6 tablespoons sugar. Continue beating until stiff and glossy, about 1 minute
- Fold the egg-white mixture into the egg-yolk mixture. In three additions, fold the reserved flour mixture into the egg mixture. Transfer two-thirds of the batter to the baking sheet, and smooth the top with an offset spatula. Transfer remaining batter to the 9×9″ pan; smooth the top with the spatula. Bake until light golden brown and a cake tester inserted into the center comes out clean, about 20 minutes. Transfer the pans to wire racks to cool; turn out the cakes, remove the parchment paper, wrap in plastic wrap, and freeze until ready to use
- In a saucepan over medium heat, combine the heavy cream, butter, and corn syrup and cook, stirring, until the butter melts and the mixture is hot but not boiling. Remove the pan from the heat and add the chocolate
- Let stand for about 30 seconds, then stir until the chocolate is completely melted and the glaze is smooth. Stir in the vanilla
Assembly
- After a few hours, remove cakes from freezer. Run a knife under hot water and slice the 9×9″ cake in half horizontally. Spread cake and cake halves out. Using a square fondant cutter, cut out as many cake squares as you possibly can (save scraps for snacking!)
- Remove custard from the fridge. Take one cake square and “frost” the top of it with the custard. Stack another cake square on top and repeat again with the custard. Stack a third cake square on top of that custard layer and set aside. Repeat with remaining cake squares
- Place all cake squares on rimmed baking sheet and spread enough of the chocolate ganache over each stack to fully coat it. Place the baking sheet in the fridge and allow the chocolate to firm up. Then enjoy!


Here are just the plain sponge cake and custard sandwiches
Adding on that ganache
I was worried they would get too soggy if I made sure every single piece of the cake was covered
The finished product!

Rolling out the dough
Close-up of the topping


Pre-baked
Post-baked
A close-up of the batter
Pre-baked
Post-baked
And now with all the trimmings!
Finally here they are all packaged up and ready to be put under the tree for Christmas day!!
Here is the dough after having been chilled for an hour
Clearly I don’t have a doughnut cutter. So I had to resort to my handy dandy plastic cup which I must say made the perfect sized doughnuts!
And then I didn’t really have anything smaller so I had to improvise and cut out a center myself
More frying, yay!

All dipped, dunked, glazed, frosted- whatever you want to call it. They’re done!


It all started with a perfect little chocolate cupcake…
…And then that perfect little chocolate cupcake was filled with a dreamy vanilla cream filling…

…And finally that perfect little chocolate cupcake with the dreamy vanilla cream filling was transformed into a classic Hostess Sno Ball with the addition of a marshmallow frosting and pink shredded coconut!


Wow, this is truly embarrassing…but these are the only pictures I managed to get from this recipe. The only thing I can add is that it turned out well, I just wish the sugar that was later added to the top after the custard was added (above picture) was bruleed. But unfortunately, I do not have a broiler and/or kitchen torch even though it’s on my wish list!
