Begin by preheating your oven to 350°F (175°C). Line a muffin tin with paper liners to prevent sticking and for easy cleanup.
In a large mixing bowl, combine the all-purpose flour, baking soda, ground ginger, ground cinnamon, ground nutmeg, ground cloves, and salt. Whisk these dry ingredients together until they are fully integrated and free of lumps.
In a separate bowl, combine the packed brown sugar and egg. Using an electric mixer or a whisk, beat the mixture until it becomes frothy and well-combined. Then, add in the unsweetened applesauce, molasses, vegetable oil, buttermilk, and the zest of one lemon. Mix all these wet ingredients together until you achieve a smooth consistency.
Gradually fold the dry ingredient mixture into the bowl with the wet ingredients. Stir gently until all elements are just combined, being careful not to overmix. It is perfectly fine if there are a few small lumps; this will keep the muffins tender.
Spoon the batter into each muffin cup, filling them about two-thirds full to allow space for rising.
Place the muffin tray in the preheated oven and bake for 18-20 minutes. The muffins are done when a toothpick inserted into the center comes out clean.
While the muffins are baking, make the lemon glaze. In a small bowl, whisk together the powdered sugar, fresh lemon juice, and lemon zest until you achieve a smooth and pourable consistency.
Once the muffins are baked, allow them to cool in the pan for about 5 minutes. Afterward, transfer the muffins to a wire rack to cool completely.
When the muffins are fully cooled, drizzle the lemon glaze generously over the top of each muffin, allowing some to drip down the sides for a lovely presentation.
Notes
Arrange the muffins attractively on a serving platter and enhance their presentation by garnishing with thin lemon slices or a few sprigs of fresh mint.