Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking dish.

Melt one cup of salted butter and let it cool slightly before mixing in the white and brown sugar until smooth.

Add two eggs one at a time and stir in vanilla extract until fully combined.

In a separate bowl, whisk together flour, baking powder, and salt.

Gradually add dry mixture to the wet ingredients, stirring gently, then fold in the chopped pecans.

Spread the batter evenly in the prepared baking dish.

Bake in the preheated oven for 30-35 minutes or until edges are golden and toothpick comes out clean.

Allow to cool completely in the pan before slicing into squares.