Boston cream pie is a delicious and fluffy dessert that combines a light sponge cake with a creamy filling and a shiny chocolate glaze. To prepare the cake, egg whites are beaten until soft peaks form, gradually adding sugar until stiff peaks are achieved. Separately, the dry ingredients are sifted and mixed with oil, milk, vanilla, and egg yolks, then the whipped egg whites are gently folded in. The batter is baked in two 9x1.5-inch round pans at 175°C for 25 minutes and then cooled completely. The filling consists of a French-style custard made with sugar, flour, cornstarch, salt, milk, and egg yolks, cooked until thickened, to which vanilla is added and then mixed with whipped cream until a smooth and creamy texture is achieved. Finally, the cake is filled with this custard and topped with a chocolate glaze made by melting chocolate and butter, mixed with powdered sugar and vanilla, adjusting the consistency with hot water to achieve a shiny and even finish. This combination of textures and flavors makes the cake an irresistible classic.
Ingredients (15)
Shortening
Cake flour
Baking powder
Salt
Sugar
Oil
Vanilla
Eggs
Milk
Cornstarch
Egg yolk
Whipping cream
Flour
Unsweetened chocolate
Butter
Instructions (43 steps)
1Beat the egg whites until soft peaks form
2Gradually add 1/2 cup of sugar
3beating until very stiff peaks form
4Sift the remaining dry ingredients together in another bowl
5Add oil
6half of the milk
7and vanilla
8Beat for 1 minute at medium speed
9Add the remaining milk and the egg yolks
10Beat for 1 minute
11scrape the bowl
12Gently fold in the egg whites
13Bake in two greased 9x1.5-inch pans
14Bake in a 350°F oven for 25 minutes
15Cool for 10 minutes and then remove from pans
16Cool completely
17Fill with cream
18Cover with chocolate frosting
19French custard filling: in a saucepan
20combine sugar
21flour
22cornstarch
23and salt
24Gradually add milk while beating
25Cook and stir until the mixture thickens and boils
26Cook and stir for 2-3 minutes more
27Add a little of the hot mixture to the egg yolk
28Return to the hot mixture
29Cook and stir until the mixture comes to a slight boil
30Add vanilla
31Cool
32Beat until smooth
33Fold in whipped cream
34Chocolate frosting: Melt the chocolate and butter over low heat
35stirring constantly
36Remove from heat
37Add powdered sugar and vanilla until it has a sandy texture
38Mix in 3 tablespoons of boiling water
39Add enough water
40one teaspoon at a time
41to form a medium-consistency pouring frosting
42Quickly pour over the top of the cake
43Spread the frosting evenly over the top and sides