Blackberry Lime Layer Cake Recipe

<ul class="ingredients-main-list"><li class="ingredients-single-item">For the Lime Cake:</li><li class="ingredients-single-item">340g unsalted butter, softened</li><li class="ingredients-single-item">400g granulated sugar</li><li class="ingredients-single-item">4 large eggs, room temperature</li><li class="ingredients-single-item">2 large egg whites, room temperature</li><li class="ingredients-single-item">360g cake flour (or all-purpose flour with 2 tbsp removed and replaced with cornstarch)</li><li class="ingredients-single-item">4 tsp baking powder</li><li class="ingredients-single-item">1/2 tsp salt</li><li class="ingredients-single-item">240ml buttermilk, room temperature</li><li class="ingredients-single-item">2 tbsp lime zest (about 4 limes)</li><li class="ingredients-single-item">60ml fresh lime juice</li><li class="ingredients-single-item">1 tsp vanilla extract</li><li class="ingredients-single-item">For the Blackberry Compote:</li><li class="ingredients-single-item">450g fresh blackberries (or frozen, thawed)</li><li class="ingredients-single-item">150g granulated sugar</li><li class="ingredients-single-item">2 tbsp lime juice</li><li class="ingredients-single-item">2 tbsp cornstarch</li><li class="ingredients-single-item">2 tbsp water</li><li class="ingredients-single-item">For the Cream Cheese Frosting:</li><li class="ingredients-single-item">500g cream cheese, softened</li><li class="ingredients-single-item">225g unsalted butter, softened</li><li class="ingredients-single-item">750g powdered sugar, sifted</li><li class="ingredients-single-item">1 tbsp lime zest</li><li class="ingredients-single-item">2 tsp vanilla extract</li><li class="ingredients-single-item">Pinch of salt</li><li class="ingredients-single-item">For Garnish:</li><li class="ingredients-single-item">Fresh blackberries</li><li class="ingredients-single-item">Lime slices or lime zest</li><li class="ingredients-single-item">Edible flowers (optional)</li></ul>

<ul class="equipment-main-list"><li class="equipment-single-item">Three 20cm (8-inch) round cake pans</li><li class="equipment-single-item">Stand mixer or hand mixer</li><li class="equipment-single-item">Offset spatula</li><li class="equipment-single-item">Cake turntable (optional but helpful)</li><li class="equipment-single-item">Sieve or flour sifter</li><li class="equipment-single-item">Microplane or zester</li></ul>

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 175°C (350°F). Grease three 20cm (8-inch) round cake pans and line the bottoms with parchment paper. This prevents any sticking and makes removal much easier.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Start by making the lime cake. In a medium bowl, whisk together the cake flour, baking powder, and salt. Proper mixing of dry ingredients ensures even distribution of leavening agents for a consistent rise.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and sugar on medium-high speed for 5 minutes until pale and fluffy. This extended creaming creates tiny air pockets that expand during baking, resulting in a lighter texture.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Add the eggs and egg whites one at a time, beating well after each addition. Scrape down the sides of the bowl frequently to ensure everything is thoroughly incorporated. The additional egg whites add structure without heaviness.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>In a separate small bowl, combine the buttermilk, lime juice, lime zest, and vanilla extract. The acidity in buttermilk and lime juice will react with the baking powder to help your cake rise and become tender.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Alternate adding the flour mixture and buttermilk mixture to the butter-sugar mixture, beginning and ending with the flour (three additions of flour, two of liquid). Mix on low speed just until combined after each addition. Overmixing at this stage can develop too much gluten, resulting in a tough cake.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Divide the batter evenly between the three prepared pans (about 500g per pan). Use a digital scale for perfect layers or an ice cream scoop for fairly even distribution. Smooth the tops with an offset spatula.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Bake for 22-25 minutes or until a toothpick inserted in the center comes out with a few moist crumbs. The cakes should be lightly golden on top and just pulling away from the sides of the pans. Be careful not to overbake!</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Cool cakes in pans for 10 minutes before inverting onto wire racks to cool completely. Placing them upside down helps flatten any domed tops. Allow at least 1-2 hours for cooling before assembling.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>While the cakes cool, prepare the blackberry compote. In a medium saucepan, combine the blackberries, sugar, and lime juice. Cook over medium heat, stirring occasionally, until the berries break down and release their juices, about 5-7 minutes.</li><li class="MethodStepper"><h4 class="step-title">Step 11</h4>In a small bowl, mix the cornstarch and water to create a slurry. Pour this into the simmering blackberry mixture, stirring constantly until the compote thickens, about 1-2 minutes. The cornstarch needs to reach a boiling point to fully activate its thickening properties.</li><li class="MethodStepper"><h4 class="step-title">Step 12</h4>Remove from heat and transfer to a heat-proof bowl. Press plastic wrap directly onto the surface of the compote (prevents a skin from forming) and refrigerate until completely cool, at least 1 hour. The compote will continue to thicken as it cools.</li><li class="MethodStepper"><h4 class="step-title">Step 13</h4>For the cream cheese frosting, beat the cream cheese and butter in a stand mixer fitted with the paddle attachment until smooth and creamy, about 2 minutes. Starting with room temperature ingredients is crucial for a smooth, lump-free frosting.</li><li class="MethodStepper"><h4 class="step-title">Step 14</h4>Gradually add the sifted powdered sugar, mixing on low speed until incorporated, then increase to medium speed and beat until light and fluffy, about 3 minutes. Add the lime zest, vanilla extract, and salt, mixing until well combined.</li><li class="MethodStepper"><h4 class="step-title">Step 15</h4>To assemble the cake, place one cake layer on a serving plate or cake board. If your cakes have domed tops, use a long serrated knife to level them by cutting horizontally across the top. Flat layers stack more securely.</li><li class="MethodStepper"><h4 class="step-title">Step 16</h4>Pipe a dam of cream cheese frosting around the edge of the first cake layer using a piping bag fitted with a round tip. This creates a barrier that prevents the compote from seeping out. Fill the center with about 1/3 of the blackberry compote, spreading it evenly within the frosting dam.</li><li class="MethodStepper"><h4 class="step-title">Step 17</h4>Place the second cake layer on top and repeat with another dam of frosting and another third of the compote. Top with the final cake layer, bottom side up for a flat top surface.</li><li class="MethodStepper"><h4 class="step-title">Step 18</h4>Apply a thin crumb coat of frosting over the entire cake and refrigerate for 20 minutes to set. This initial layer seals in any loose crumbs, ensuring your final layer of frosting looks clean and professional.</li><li class="MethodStepper"><h4 class="step-title">Step 19</h4>Frost the cake with the remaining cream cheese frosting, creating smooth sides and top with an offset spatula or bench scraper. Work from the top down, using long, smooth strokes. For an optional ombré effect, tint a portion of your frosting with a few drops of blackberry juice.</li><li class="MethodStepper"><h4 class="step-title">Step 20</h4>Garnish the cake with fresh blackberries, thin lime slices or zest, and edible flowers if desired. You can also pipe decorative swirls of frosting around the top edge using a star tip. Refrigerate the assembled cake for at least 1 hour before serving to allow the flavors to meld and the frosting to set.</li><li class="MethodStepper"><h4 class="step-title">Step 21</h4>For the best flavor experience, remove the cake from the refrigerator 20-30 minutes before serving to take the chill off. The cake will keep, covered in the refrigerator, for up to 3 days. Enjoy your beautiful creation!</li></ol>