Preheat oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.
In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
2.5 cups all-purpose flour
In a large bowl, cream together softened butter and granulated sugar until light and fluffy.
2.5 cups all-purpose flour
Beat in eggs one at a time, then stir in lemon zest.
2.5 cups all-purpose flour
In a small bowl, whisk together fresh lemon juice and milk.
2.5 cups all-purpose flour
Gradually add the dry ingredients to the wet ingredients, alternating with the lemon juice mixture, beginning and ending with the dry ingredients. Mix until just combined.
Pour batter into the prepared pan and spread evenly.
Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean.
Let the cake cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely.
While the cake cools, prepare the glaze. In a small bowl, whisk together powdered sugar and lemon juice until smooth.
2.5 cups all-purpose flour
Drizzle the glaze over the cooled cake.
Notes
This lemon cake is best served at room temperature. It can be stored in an airtight container at room temperature for up to 3 days.