Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 190°C (375°F). Line a 6-cup muffin tin with paper liners and lightly spray with oil. In a small bowl, prepare your flax egg by mixing ground flaxseed with water, then set aside for 5 minutes to thicken. This plant-based egg replacer will provide structure to our muffins.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Chop 60g of the dark chocolate into small chunks and set aside. Break the remaining 40g into 6 equal pieces (about 6-7g each) for the lava centers and set aside separately.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>In a large bowl, whisk together the flour, cocoa powder, sugar, baking soda, and salt until well combined. The cocoa powder tends to clump, so be thorough with your whisking to ensure a smooth batter later.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>In a separate bowl, combine the plant milk and apple cider vinegar. Let it sit for 2 minutes to curdle slightly—this creates a vegan buttermilk that will help activate the baking soda and create a tender crumb. Then add the vegetable oil, vanilla extract, and the prepared flax egg. Whisk until smooth.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Pour the wet ingredients into the dry ingredients and gently fold together until just combined. Don't overmix – a few small lumps are perfectly fine! Overmixing develops gluten, which can make your muffins tough rather than tender.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Fold in the 60g of chopped chocolate pieces until evenly distributed throughout the batter. The chocolate will create pockets of melted goodness throughout each muffin.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Fill each muffin cup about halfway with batter. Place one of your reserved chocolate pieces in the center of each cup, then cover with additional batter until the cups are about ¾ full. This creates the molten "lava" center as the chocolate piece melts during baking but remains gooey.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Bake in the preheated oven for 12-14 minutes. This is crucial: the muffins should be set around the edges but still slightly underdone in the center. They'll appear slightly domed with small cracks on top but will still be soft when lightly pressed. Don't overbake or you'll lose the molten center!</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Remove from the oven and allow to cool in the tin for exactly 5 minutes – this timing is key for the perfect lava consistency. The residual heat continues cooking the muffins slightly while setting the exterior.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Carefully transfer the muffins to a wire rack. For the best lava flow experience, serve while still warm (within 15 minutes of baking). If desired, dust lightly with cocoa powder just before serving. To reheat any leftover muffins, warm in the microwave for 15-20 seconds until the center becomes molten again. Enjoy the magical moment as your fork releases the river of chocolate from within!</li></ol>