01 - Preheat oven to 350°F. Grease a 12-cup mini muffin pan or mini cake molds thoroughly.
02 - Whisk together flour, baking powder, and salt in a medium bowl. Set aside.
03 - Beat butter and sugar in a large bowl until light and fluffy.
04 - Add eggs one at a time, beating well after each addition. Stir in lemon zest, lemon juice, and vanilla extract.
05 - Add half of dry ingredients to wet mixture, mixing gently. Add milk, then remaining flour mixture. Mix until just combined.
06 - Divide batter evenly among prepared mini cake molds, filling each about 2/3 full.
07 - Bake for 18 to 20 minutes, or until a toothpick inserted in center comes out clean. Cool in pan for 5 minutes, then transfer to wire rack.
08 - Warm milk with lavender in small saucepan over low heat for 2 to 3 minutes. Remove from heat, let steep for 5 minutes, then strain.
09 - Whisk together powdered sugar, lavender-infused milk, and lemon juice until smooth and pourable. Add more milk if needed.
10 - Spoon or drizzle glaze over cooled mini lemon cakes. Garnish with extra lavender buds or lemon zest if desired. Let set before serving.