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

In a mixing bowl, whisk together granulated sugar, light brown sugar, and vegetable oil until smooth. Add eggs and whisk until glossy.

Sift together flour, baking powder, and salt in a separate bowl. Gradually fold into the wet mixture.

Gently combine wet and dry ingredients, being careful not to overmix.

Fold in vanilla extract and chopped pecans.

Pour batter into greased dish and bake for 30-35 minutes until golden brown.

Cool in the pan for 10-15 minutes, then cut into squares and serve.