81-Layer Reverse Puff Pastry with Cultured Butter Recipe

<ul class="ingredients-main-list"><li class="ingredients-single-item">300g strong bread flour</li><li class="ingredients-single-item">300g pastry flour (or all-purpose flour)</li><li class="ingredients-single-item">12g fine sea salt</li><li class="ingredients-single-item">40g unsalted butter, softened</li><li class="ingredients-single-item">300ml cold water</li><li class="ingredients-single-item">500g cultured butter (European-style butter with at least 82% fat content)</li><li class="ingredients-single-item">30g bread flour (for butter block)</li><li class="ingredients-single-item">Extra flour for dusting</li></ul>

<ul class="equipment-main-list"><li class="equipment-single-item">Digital kitchen scale</li><li class="equipment-single-item">Rolling pin</li><li class="equipment-single-item">Large baking sheet</li><li class="equipment-single-item">Bench scraper</li><li class="equipment-single-item">Ruler or measuring tape</li><li class="equipment-single-item">Pastry brush</li><li class="equipment-single-item">Parchment paper</li></ul>

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Begin by preparing your butter block. Take the cultured butter out of the refrigerator 20 minutes before starting to slightly temper it. Mix the 500g cultured butter with 30g bread flour until completely combined. This flour helps absorb excess moisture and makes the butter more pliable without melting. Form a 20cm square on parchment paper, fold the paper over, and use a rolling pin to create an even thickness. Refrigerate for 30 minutes to firm up.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>For the détrempe (dough), combine the flours and salt in a large bowl. Add the softened butter and rub it into the flour until the mixture resembles breadcrumbs. This coating of fat helps control gluten development, resulting in more tender layers. Make a well in the center and pour in the cold water. Mix until just combined - do not overmix or knead, as this would develop too much gluten and make your pastry tough.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Form the dough into a rough square, wrap in plastic, and refrigerate for 30 minutes. This resting period allows the gluten to relax and the flour to fully hydrate, making rolling easier while preventing shrinkage.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Now for the reverse lamination: Unlike traditional puff pastry where the butter is enclosed in dough, we'll enclose the dough in butter. Remove your butter block from the refrigerator. On a lightly floured surface, roll the dough into a 15cm square. Place this square in the center of your butter block. The butter should be pliable but cool - around 15°C is ideal. If it's too cold, it will crack; too warm, it will melt into the dough.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Fold the corners of the butter over the dough, ensuring no dough is exposed. Seal the edges by gently pressing them together. You now have a butter package with dough hidden inside - the reverse of traditional puff pastry. Wrap and refrigerate for 30 minutes to stabilize the temperature.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>For your first turn, roll the butter-encased dough on a lightly floured surface into a rectangle approximately 45cm x 15cm. Keep edges straight and corners square by using your bench scraper. Brush off any excess flour, as it can create tough spots between your layers.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Perform a letter fold (also called a single turn): Visually divide your rectangle into thirds. Fold the right third over the middle, then fold the left third on top, like folding a letter. You've just created 3 layers. Turn the dough 90 degrees so the open ends face right and left. Wrap and refrigerate for 30 minutes.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Repeat this rolling and folding process 3 more times (for a total of 4 single turns), always starting with the open ends facing right and left. Rest the dough in the refrigerator for 30 minutes between each turn. With each single turn, you multiply your layers by 3. After 4 turns, you'll have 3⁴ = 81 layers. Throughout this process, keep your work surface, rolling pin, and the dough itself cool. If your kitchen is warm, consider cooling your work surface with ice packs before rolling.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>After the final turn, wrap the dough tightly in plastic wrap and refrigerate for at least 2 hours, preferably overnight. This extended rest allows the gluten to fully relax and the butter to solidify evenly throughout the dough. Properly rested dough will rise more evenly, creating those beautiful distinct layers.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>To bake your pastry, preheat the oven to 200°C (fan)/220°C (conventional)/425°F. Cut and shape your pastry as desired while cold, then allow to proof slightly at room temperature (about 20 minutes) before baking. For a golden finish, brush with egg wash. Bake until deeply golden and crisp, about 15-25 minutes depending on the size and shape of your pastries. The dramatic rise and separation of the 81 layers will create a stunning honeycomb-like structure with a rich, tangy flavor from the cultured butter.</li></ol>