01 - Preheat oven to 350°F. Thoroughly grease a 12-cup mini bundt or muffin pan, or line with paper liners if using a muffin pan.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt until well blended.
03 - In a large bowl, beat softened butter and granulated sugar together until light and fluffy, approximately 2-3 minutes.
04 - Add eggs one at a time, mixing thoroughly after each addition. Stir in lemon zest, lemon juice, and vanilla extract until incorporated.
05 - Add flour mixture in three portions, alternating with milk, beginning and ending with flour. Mix until just combined, taking care not to overmix.
06 - Divide batter evenly among prepared cups, filling each approximately 2/3 full.
07 - Bake for 17-20 minutes, or until a toothpick inserted into the center comes out clean. Allow to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
08 - While cakes cool, heat milk for glaze just until simmering. Remove from heat, add lavender buds, and steep for 10 minutes. Strain out lavender buds.
09 - Whisk infused milk with powdered sugar and lemon juice until smooth and pourable consistency is achieved.
10 - Drizzle glaze over completely cooled cakes. Garnish with additional lemon zest or edible lavender buds if desired.