Step 1

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

Step 2

In a large bowl, whisk together the butter and sugars, then whisk in the eggs and vanilla. Stir in the flour mixture, then the pecans and chocolate chips.

Step 3

Spread the batter in the prepared pan and bake until a toothpick inserted in the center comes out clean, 35 to 40 minutes.

Step 4

Cool completely in the pan. Holding both sides of the paper overhang, lift the cake out of the pan, transfer to a cutting board, and cut into 16 squares. Note: Total Time includes cooling time.