Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking pan or line it with parchment paper for easy removal.
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar using an electric mixer until light and fluffy, about 3-4 minutes.
Add the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract until combined.
In a separate bowl, whisk together the flour, salt, and baking powder. Gradually add this dry mixture to the wet ingredients, mixing just until combined. Avoid over-mixing.
Gently fold in the chocolate chips and chopped pecans, reserving a small amount for topping if desired.
Spread half of the batter evenly into the prepared baking pan. Bake for 15 minutes in the preheated oven.
Carefully remove the pan from the oven and drizzle half of the caramel sauce over the partially baked layer. Then, spoon dollops of the remaining batter over the caramel. It’s okay if some caramel is visible; it will spread as it bakes.
Bake for an additional 20-25 minutes or until the top is golden brown and a toothpick inserted in the center comes out clean.
Once baked, immediately drizzle the remaining caramel sauce over the hot bars and sprinkle any reserved chocolate chips and pecans on top.
Allow the bars to cool completely in the pan on a wire rack before cutting them into squares.
Notes
Serve on a decorative plate and drizzle with additional caramel sauce for an extra touch.