Preheat your oven to 350°F (175°C) and prepare a 9x13-inch baking dish by greasing it generously with butter or cooking spray.

In a microwave-safe bowl, melt about half a cup of butter until fully liquid, about 30 seconds.

In a large mixing bowl, combine granulated sugar, light brown sugar, and eggs. Whisk until smooth and frothy, about 2-3 minutes. Gradually add melted butter and vanilla extract while whisking.

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

Gradually add the dry ingredients to the wet mixture, folding gently until just combined.

Fold in chopped pecans to the batter.

Pour the batter into the prepared baking dish and bake for 30-35 minutes, or until the edges are golden brown.

Let cool for 10-15 minutes in the pan before transferring to a wire rack.