Step 1: Prepare the Batter

1. Preheat oven to 350°F (175°C) and grease a mini cake or muffin tin.
2. In a bowl, whisk together flour, baking powder, and salt. Set aside.
3. In a separate large bowl, beat butter and sugar until light and fluffy.
4. Add eggs, one at a time, mixing well after each addition.
5. Stir in lemon zest, lemon juice, and vanilla extract.
6. Gradually add the dry ingredients, alternating with milk, until just combined.

Step 2: Bake the Cakes

1. Spoon the batter into the prepared tin, filling each ¾ full.
2. Bake for 15-18 minutes, or until a toothpick inserted in the center comes out clean.
3. Let the cakes cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.

Step 3: Make the Lemon Glaze

1. Whisk together powdered sugar, lemon juice, cream, and vanilla until smooth.
2. Drizzle the glaze over the cooled cakes and let it set for 15 minutes before serving.