01 - Preheat oven to 350°F (175°C). Grease a 12-cup mini muffin pan or mini cake molds thoroughly.
02 - In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
03 - In a large bowl, beat butter and sugar together 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, mix gently. Add milk, then remaining flour mixture. Mix until just combined—avoid overmixing.
06 - Divide batter evenly among prepared molds, filling each about 2/3 full. Bake for 18-20 minutes until toothpick inserted in center comes out clean.
07 - Let cool in pan for 5 minutes, then transfer to wire rack to cool completely.
08 - While cakes cool, gently warm milk with lavender in small saucepan over low heat for 2-3 minutes. Remove from heat, let steep for 5 minutes, then strain to remove lavender buds.
09 - Whisk together powdered sugar, lavender-infused milk, and lemon juice until smooth and pourable. Add additional milk if needed for desired consistency.
10 - Spoon or drizzle glaze over cooled mini lemon cakes. Garnish with extra lavender buds or lemon zest if desired. Allow glaze to set before serving.