Step 1

Preheat oven to 350°F (175°C). Lightly grease a 12-cup muffin tin or line with cupcake liners.

Step 2

In a mixing bowl, whisk together the melted butter, sugar, and flour until well combined.

Step 3

Add eggs one at a time, whisking well after each addition.

Step 4

Pour in the milk, lemon juice, lemon zest, vanilla extract, and salt. Mix until smooth.

Step 5

Divide batter evenly among muffin cups, filling about 3/4 full. Bake for 22-25 minutes until set and slightly golden on top.

Step 6

Let pies cool in pan for 10 minutes, then transfer to wire rack to cool completely. Dust with powdered sugar before serving.