Lemon Curd Sandwich Cookies Recipe

<ul class="ingredients-main-list"><li class="ingredients-single-item">For the Shortbread Cookies:</li><li class="ingredients-single-item">225g unsalted butter, softened</li><li class="ingredients-single-item">100g granulated sugar</li><li class="ingredients-single-item">1 tsp vanilla extract</li><li class="ingredients-single-item">280g plain flour</li><li class="ingredients-single-item">1/4 tsp salt</li><li class="ingredients-single-item">For the Lemon Curd:</li><li class="ingredients-single-item">3 large eggs</li><li class="ingredients-single-item">150g granulated sugar</li><li class="ingredients-single-item">Zest of 2 lemons</li><li class="ingredients-single-item">120ml fresh lemon juice (about 3-4 lemons)</li><li class="ingredients-single-item">75g unsalted butter, cubed</li><li class="ingredients-single-item">Pinch of salt</li><li class="ingredients-single-item">For Assembly:</li><li class="ingredients-single-item">25g icing sugar, for dusting</li></ul>

<ul class="equipment-main-list"><li class="equipment-single-item">Electric mixer (stand or hand)</li><li class="equipment-single-item">5cm (2-inch) round cookie cutter</li><li class="equipment-single-item">Fine mesh sieve</li><li class="equipment-single-item">Heatproof bowl</li><li class="equipment-single-item">Digital thermometer</li></ul>

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Begin by making the lemon curd as it needs time to chill. Create a double boiler by setting a heatproof bowl over a pot of simmering water (ensuring the bowl doesn't touch the water). Whisk together eggs, sugar, lemon zest, lemon juice, and salt in the bowl. This indirect heating method prevents the eggs from scrambling and ensures a silky smooth curd.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Stir the mixture continuously with a silicone spatula or wooden spoon for 10-15 minutes until it thickens enough to coat the back of a spoon. The curd should reach 75-80°C on a digital thermometer – this temperature ensures the eggs are safely cooked while achieving the perfect consistency.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Remove from heat and stir in the cubed butter, a few pieces at a time, allowing each addition to melt before adding more. The butter enriches the curd and gives it a luxurious, velvety texture. Strain through a fine mesh sieve to remove any zest and potential egg lumps, creating a perfectly smooth filling.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Transfer the curd to a container, press plastic wrap directly onto the surface (this prevents a skin from forming), and refrigerate for at least 2 hours or overnight. The curd will continue to thicken as it chills, reaching the perfect spreadable consistency for your cookies.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>For the shortbread cookies, preheat your oven to 170°C and line two baking sheets with parchment paper. In a large bowl, beat the softened butter and sugar until pale and fluffy, about 3-4 minutes. This step is crucial as it creates tiny air pockets that give your shortbread its delicate texture.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Add the vanilla extract and mix to combine. Gradually add the flour and salt, mixing on low speed until just incorporated. Overmixing at this stage will develop gluten, making your cookies tough rather than tender and crumbly.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Form the dough into a disc, wrap in plastic, and chill for 30 minutes. Chilling relaxes the gluten and firms up the butter, helping the cookies maintain their shape during baking and creating that signature "short" texture that makes shortbread so irresistible.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>On a lightly floured surface, roll the dough to about 5mm thickness. Cut out rounds using a 5cm cookie cutter, re-rolling scraps as needed. You should get approximately 30 cookies for 15 sandwiches. Transfer to prepared baking sheets, spacing 2cm apart.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Bake for 12-15 minutes until the edges are just barely turning golden. Shortbread should remain quite pale – overbaking will make them dry and brittle. Cool on the baking sheets for 5 minutes before transferring to a wire rack to cool completely.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>To assemble, turn half the cookies upside down and place about 1 teaspoon of lemon curd in the center of each. Don't spread the curd all the way to the edges, as it will naturally spread when you press the cookies together.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>Place the remaining cookies on top, gently pressing to spread the filling evenly. For a professional finish, dust the assembled cookies with icing sugar using a fine mesh sieve.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Allow the sandwiched cookies to set for about 30 minutes before serving. This helps the filling firm up slightly and ensures the cookies won't slide apart when handled. Store in an airtight container in the refrigerator for up to 5 days, bringing to room temperature before serving for the best flavor and texture.</li></ol>