Preheat the oven to 350°F (175°C). Grease a 9x5 inch loaf pan with butter or baking spray, then dust with flour.

In a mixing bowl, combine 1 cup of softened butter, 1 cup of granulated sugar, and 1/2 cup of brown sugar. Beat on medium speed for 3-4 minutes until fluffy.

Add 3 large eggs one at a time, mixing well after each. Pour in 2 teaspoons of vanilla extract and mix until fully combined.

In another bowl, whisk together 2 cups of flour, 1 teaspoon of baking powder, and 1/2 teaspoon of salt. Gradually add to the wet mixture, mixing on low speed until combined.

Gently fold in 1 cup of toasted pecans using a spatula.

Pour the batter into the prepared pan and smooth the top.

Bake for 30-35 minutes or until a toothpick comes out clean and the edges are golden brown.

Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.