01 - Preheat oven to 350°F. Line a 12-cup muffin tin with paper liners or coat lightly with nonstick spray.
02 - In a large mixing bowl, whisk together all-purpose flour, granulated sugar, baking powder, baking soda, salt, fresh ginger, and lemon zest until evenly combined.
03 - In a separate bowl, whisk eggs, vegetable oil, Greek yogurt or buttermilk, lemon juice, and vanilla extract until smooth.
04 - Pour wet ingredients into dry mixture. Stir gently until just combined, being careful not to overmix.
05 - Divide the batter evenly among prepared muffin cups, filling each about three-quarters full.
06 - Bake for 16 to 18 minutes until a toothpick inserted in the center of a muffin comes out clean.
07 - Allow muffins to rest in the tin for 5 minutes, then transfer to a wire rack and let cool completely.
08 - Whisk together powdered sugar, 2 to 3 tablespoons fresh lemon juice, and finely grated ginger (if desired) until a smooth, pourable consistency forms.
09 - Drizzle the glaze over fully cooled muffins. Let the glaze set before serving.