Directions
<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Preheat your oven to 190°C (375°F) and line a 12-cup muffin tin with paper liners. If you prefer crustier muffin edges, you can lightly grease the muffin tin instead of using liners.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Prepare your sweet potato by washing, peeling and cutting into 2cm chunks. Steam or boil until fork-tender (about 15 minutes), then drain thoroughly and mash until smooth. Allow to cool slightly before using. For even more flavor, you can roast the whole sweet potato until soft, which will concentrate its natural sugars.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>In a large bowl, whisk together the dry ingredients: flour, sugar, baking powder, baking soda, salt, cinnamon, nutmeg, and ginger. This even distribution of leavening agents and spices ensures consistent flavor and texture throughout your muffins.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>In a separate medium bowl, combine the wet ingredients: mashed sweet potato (make sure it's still warm, not hot), melted butter, eggs, milk, and vanilla extract. Whisk until smooth and well-combined. The warm sweet potato helps melt the butter slightly, creating a more homogeneous mixture.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Make a well in the center of your dry ingredients and pour in the sweet potato mixture. Gently fold together using a rubber spatula until just combined – you should still see a few streaks of flour. Overmixing develops gluten, which can make your muffins tough rather than tender.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Add the chocolate chips and fold gently just until evenly distributed. Reserve a small handful to sprinkle on top if desired. Tossing chocolate chips in a bit of flour before adding can prevent them from sinking to the bottom during baking.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>Divide the batter evenly among the prepared muffin cups, filling each about 3/4 full. Sprinkle the tops with the reserved chocolate chips and the cinnamon-sugar mixture if using. This creates a delightful sweet, crisp top.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Bake in the preheated oven for 20-22 minutes, or until a toothpick inserted into the center of a muffin comes out clean or with just a few moist crumbs (not wet batter). The tops should be golden brown and spring back when lightly touched.</li><li class="MethodStepper"><h4 class="step-title">Step 9</h4>Allow the muffins to cool in the tin for 5 minutes – this brief rest helps them set up and makes removal easier. Then transfer to a wire rack to cool completely. Though these are delicious warm with melty chocolate, the flavor of the spices develops more fully as they cool.</li><li class="MethodStepper"><h4 class="step-title">Step 10</h4>Store completely cooled muffins in an airtight container at room temperature for up to 3 days, or freeze for up to 3 months. To reheat from frozen, microwave for 20-30 seconds or warm in a 160°C (325°F) oven for about 10 minutes.</li></ol>