Preheat your oven to 350°F (175°C). Grease an 8×8 inch baking pan thoroughly to prevent sticking.

In a mixing bowl, add the melted butter and granulated sugar. Stir them together until the mixture is well combined and smooth.

Add the two large eggs to the butter and sugar mixture, incorporating them one at a time. Then, stir in the teaspoon of vanilla extract until evenly mixed.

In a separate bowl, whisk together the all-purpose flour, salt, and baking powder until thoroughly combined.

Carefully add the dry ingredients to the wet mixture. Mix just until everything is incorporated – do not overmix.

Fold in the lemon zest and freshly squeezed lemon juice. Stir until fully integrated.

Pour the prepared batter into the greased baking pan, spreading it evenly.

Bake in the preheated oven for 20-25 minutes, or until a toothpick inserted into the center comes out clean.

Once baked, allow the brownies to cool in the pan. After cooling, dust generously with powdered sugar.

Cut into squares and enjoy your delicious Tangy Lemon Brownies.