Boston Cream Pie Recipe

<ul class="ingredients-main-list"><li class="ingredients-single-item">For the Vanilla Cake:</li><li class="ingredients-single-item">200g all-purpose flour</li><li class="ingredients-single-item">200g granulated sugar</li><li class="ingredients-single-item">2 tsp baking powder</li><li class="ingredients-single-item">1/4 tsp salt</li><li class="ingredients-single-item">115g unsalted butter, softened</li><li class="ingredients-single-item">175ml whole milk</li><li class="ingredients-single-item">2 large eggs, room temperature</li><li class="ingredients-single-item">2 tsp vanilla extract (or 1 vanilla bean, seeds scraped)</li><li class="ingredients-single-item">For the Pastry Cream:</li><li class="ingredients-single-item">500ml whole milk</li><li class="ingredients-single-item">1 vanilla bean, split and seeds scraped (or 2 tsp vanilla extract)</li><li class="ingredients-single-item">100g granulated sugar</li><li class="ingredients-single-item">40g cornstarch</li><li class="ingredients-single-item">Pinch of salt</li><li class="ingredients-single-item">4 large egg yolks</li><li class="ingredients-single-item">30g unsalted butter, cubed</li><li class="ingredients-single-item">For the Chocolate Ganache:</li><li class="ingredients-single-item">120g dark chocolate (70% cocoa), finely chopped</li><li class="ingredients-single-item">120ml heavy cream</li><li class="ingredients-single-item">1 tbsp unsalted butter</li><li class="ingredients-single-item">1 tbsp glucose syrup (or honey)</li></ul>

<ul class="equipment-main-list"><li class="equipment-single-item">20cm (8-inch) round cake tin</li><li class="equipment-single-item">Stand mixer or electric hand mixer</li><li class="equipment-single-item">Medium saucepan</li><li class="equipment-single-item">Fine mesh sieve</li><li class="equipment-single-item">Digital kitchen thermometer</li><li class="equipment-single-item">Offset spatula</li></ul>

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Begin with the pastry cream as it needs time to chill. In a medium saucepan, heat the milk with vanilla bean seeds and pod (if using) until steaming but not boiling. Remove from heat, cover, and let infuse for 15 minutes. Remove the vanilla pod.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>In a heat-proof bowl, whisk together the sugar, cornstarch, salt, and egg yolks until smooth and pale yellow. This mixing technique prevents lumps in your custard while creating a stable emulsion.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Slowly pour about 120ml of the warm milk into the egg mixture, whisking constantly to temper the eggs. This gradual warming prevents the eggs from curdling. Then pour this mixture back into the remaining warm milk in the saucepan.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Return the saucepan to medium heat and cook, whisking constantly, until the mixture thickens and begins to bubble, about 4-5 minutes. Once it starts bubbling, continue cooking for exactly 1 minute (set a timer!). The mixture should be very thick and coat the back of a spoon.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Remove from heat and strain through a fine-mesh sieve into a clean bowl to remove any lumps. Add the butter and whisk until completely melted and incorporated. The butter adds richness and helps prevent a skin from forming.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Press a piece of plastic wrap directly onto the surface of the pastry cream to prevent a skin from forming. Refrigerate until completely cold, at least 3 hours or overnight.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>For the cake, preheat your oven to 175°C (350°F). Grease a 20cm (8-inch) round cake tin and line the bottom with parchment paper.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>In a medium bowl, sift together the flour, baking powder, and salt. Sifting incorporates air and ensures even distribution of leavening agents for a more uniform rise.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>In the bowl of a stand mixer fitted with the paddle attachment (or using a hand mixer), cream the butter and sugar together on medium-high speed until light and fluffy, about 3-4 minutes. Don't rush this step - proper creaming creates tiny air bubbles that expand during baking, resulting in a lighter texture.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Add the eggs one at a time, beating well after each addition. Scrape down the sides of the bowl as needed. Mix in the vanilla extract.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>With the mixer on low speed, add the flour mixture in three additions, alternating with the milk (beginning and ending with flour). Mix just until combined to avoid developing too much gluten, which would make the cake tough.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Pour the batter into the prepared cake tin and smooth the top with an offset spatula. Bake for 28-30 minutes, or until a toothpick inserted into the center comes out clean and the cake springs back when lightly touched. The cake should be golden on top.</li><li class="MethodStepper"><h4 class="step-title">Step 13</h4>Allow the cake to cool in the tin for 10 minutes, then invert onto a wire rack to cool completely. Once cool, use a long serrated knife to slice the cake horizontally into two even layers.</li><li class="MethodStepper"><h4 class="step-title">Step 14</h4>For the chocolate ganache, place the finely chopped chocolate in a heat-proof bowl. The finer your chocolate is chopped, the more evenly it will melt.</li><li class="MethodStepper"><h4 class="step-title">Step 15</h4>Heat the heavy cream in a small saucepan until it just begins to simmer at the edges (do not boil). Pour the hot cream over the chocolate and let it sit undisturbed for 1 minute to melt the chocolate.</li><li class="MethodStepper"><h4 class="step-title">Step 16</h4>Gently stir the mixture with a rubber spatula until smooth and completely combined. Add the butter and glucose syrup (or honey), stirring until incorporated. The butter adds shine, while the glucose prevents crystallization and keeps the ganache glossy. Set aside to cool until slightly thickened but still pourable, about 10-15 minutes.</li><li class="MethodStepper"><h4 class="step-title">Step 17</h4>To assemble, place the bottom cake layer on a serving plate. Take your chilled pastry cream and whisk it briefly to loosen if needed. Spread the pastry cream evenly over the bottom cake layer, leaving about 1cm border around the edge (the weight of the top layer will push the cream to the edges).</li><li class="MethodStepper"><h4 class="step-title">Step 18</h4>Carefully place the second cake layer on top, gently pressing down. If any pastry cream oozes out, use an offset spatula to smooth it around the sides.</li><li class="MethodStepper"><h4 class="step-title">Step 19</h4>Pour the chocolate ganache over the top of the cake, starting from the center and working outward. Use an offset spatula to guide the ganache to the edges, allowing some to drip down the sides for a beautiful finish.</li><li class="MethodStepper"><h4 class="step-title">Step 20</h4>Refrigerate the assembled cake for at least 1 hour to set the ganache and firm up the pastry cream. For the best flavor, remove from the refrigerator about 30 minutes before serving to take the chill off. Boston Cream Pie will keep refrigerated for up to 3 days, though the cake may gradually absorb moisture from the filling.</li></ol>