Directions
<ol class="no-list-style"> <li class="MethodStepper"> <h4 class="step-title">Step 1</h4> Begin with the pastry by placing the flour, cold butter cubes, and salt in a food processor. Pulse until the mixture resembles fine breadcrumbs - this creates little pockets of butter that expand during baking, giving you that perfect flaky texture. If making by hand, use your fingertips to rub the butter into the flour until you achieve the same consistency. </li> <li class="MethodStepper"> <h4 class="step-title">Step 2</h4> Add the icing sugar and pulse briefly to combine. Then add the egg yolk and 2 tablespoons of ice-cold water, pulsing until the dough just begins to come together. If it seems too dry, add the remaining tablespoon of water, but be careful not to overwork the dough - this develops gluten and makes your pastry tough rather than tender. </li> <li class="MethodStepper"> <h4 class="step-title">Step 3</h4> Turn the dough onto a lightly floured surface, form into a disc, wrap in cling film, and refrigerate for at least 30 minutes. This resting period is crucial - it relaxes the gluten and firms up the butter, preventing shrinkage during baking. </li> <li class="MethodStepper"> <h4 class="step-title">Step 4</h4> While the pastry chills, make your toffee pieces. Line a baking sheet with parchment paper. In a heavy-bottomed saucepan, combine the sugar, butter, golden syrup, and salt. Heat gently until the sugar dissolves completely, then increase the heat and boil until the mixture reaches 145°C (293°F) on a sugar thermometer or turns a rich amber color. Immediately pour onto the prepared baking sheet and leave to cool completely before breaking into small pieces. </li> <li class="MethodStepper"> <h4 class="step-title">Step 5</h4> Preheat your oven to 180°C (160°C fan/350°F). Roll out the chilled pastry on a lightly floured surface to about 3mm thickness, making sure it's large enough to line your tart tin with some overhang. Carefully drape the pastry over your rolling pin to transfer it to the tin, then gently press it into the corners without stretching it. Trim any excess pastry, leaving a small overhang to account for shrinkage. </li> <li class="MethodStepper"> <h4 class="step-title">Step 6</h4> Prick the base all over with a fork (this prevents air bubbles), then line with baking parchment and fill with baking beans or rice. Blind bake for 15 minutes, then remove the beans and parchment and bake for another 5-7 minutes until the base is dry and just starting to color. The blind baking ensures your pastry is crisp, not soggy, when filled with the custard. Lower the oven temperature to 160°C (140°C fan/320°F). </li> <li class="MethodStepper"> <h4 class="step-title">Step 7</h4> For the custard, warm the milk with the vanilla pod and seeds (or extract) in a saucepan until just below boiling point. Meanwhile, in a large bowl, whisk together the eggs, egg yolks, sugar, and cornflour until pale and thick. This initial whisking incorporates air and helps create a silky-smooth custard. </li> <li class="MethodStepper"> <h4 class="step-title">Step 8</h4> Remove the vanilla pod if using, then gradually pour the hot milk into the egg mixture, whisking constantly. This slow tempering process prevents the eggs from scrambling and ensures a smooth custard. Return the mixture to the clean saucepan and cook over low heat, stirring constantly, until it thickens enough to coat the back of a wooden spoon. Do not let it boil or it will curdle. </li> <li class="MethodStepper"> <h4 class="step-title">Step 9</h4> Stir about two-thirds of the toffee pieces into the warm custard, reserving the rest for decoration. Pour the custard into your pre-baked tart shell, making sure the toffee pieces are evenly distributed. If any bubbles form on the surface, gently pop them with a toothpick for a smooth finish. </li> <li class="MethodStepper"> <h4 class="step-title">Step 10</h4> Carefully transfer the tart to the oven and bake for 25-30 minutes until the custard is just set but still has a slight wobble in the center, like a good panna cotta. The custard will continue to firm up as it cools, so be careful not to overbake or it will become rubbery. </li> <li class="MethodStepper"> <h4 class="step-title">Step 11</h4> Allow the tart to cool completely in the tin on a wire rack before removing. The cooling process is essential for the custard to set properly. Once cool, sprinkle the reserved toffee pieces over the top for a beautiful finish and that contrasting crunch. </li> <li class="MethodStepper"> <h4 class="step-title">Step 12</h4> For the cleanest slices, use a sharp knife dipped in hot water and wiped dry between each cut. This tart is best enjoyed the day it's made but will keep in the refrigerator for up to 2 days. Just bring it to room temperature before serving to allow the flavors to fully develop. Congratulations on creating this showstopping toffee custard tart! </li> </ol>