Preheat the oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.

In a mixing bowl, combine the lemon cake mix, eggs, water, and vegetable oil. Mix with a whisk until smooth.

Divide the batter evenly between the prepared cake pans.

Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

Allow the cakes to cool in the pans for 10 minutes before transferring to a wire rack to cool completely.

In a small bowl, whisk together the powdered sugar, fresh lemon juice, and lemon zest until smooth.

Once the cakes are completely cooled, drizzle the lemon glaze over the top of one cake layer, then place the second layer on top and glaze the top.