Preheat oven to 350°F. Spray a bundt pan with non-stick spray and lightly flour it.

In a large bowl, combine cake mix, melted butter, eggs, milk, butter extract, and pudding mix. Beat until smooth.

Pour batter into prepared pan and bake for 35-45 minutes, or until a toothpick inserted in the center comes out clean.

While the cake bakes, make the lemon glaze by mixing lemon juice, lemon zest, salt, vanilla, and powdered sugar.

Remove the cake from oven, let cool for 10 minutes, then poke holes in the cake and pour glaze over it.

Allow cake to cool completely, then dust with powdered sugar before serving.