1.Preheat oven to 340 degrees. Mist a non stick 8 or 9 inch square pan with cooking spray. Set aside.
2.In a large mixing bowl, beat with a hand held mixer or stand mixer, the softened butter with the sugar until fluffy. Add the eggs one at a time until well incorporated. Add the lemon juice and zest and mix just until combined.
3.In a separate bowl, whisk together the flour, salt, baking soda and baking soda. Add the flour mixture into the wet ingredients and beat at medium speed for about 1 to 2 minutes until nice and creamy.
4.Pour batter into prepared pan and bake for about 20-24 minutes. Try not to over bake. The edges will turn lightly golden brown. A toothpick should have moist crumbs. Let cool on a wire rack for at least 20 minutes.
5.While cooling, prepare the glaze and then spread over the brownies and sprinkle on the zest. Cut into 16 brownies.