Preheat the oven to 350º F. Line a 13 x 9-inch baking pan with parchment paper and spray with non-stick spray. I like to spray the pan too before I put the parchment in. This makes it stick.

First, make the crust. Put the butter, both flours, brown sugar and salt into the bowl of an electric mixer and stir until coarse crumbs form. Press into prepared baking pan.

Bake for 11-15 minutes or until lightly browned.

Next, make the filling. In another bowl, whisk the eggs, corn syrup, brown sugar and vanilla until well-mixed Fold in the pecans and chocolate chips. Pour the filling over the cooked crust and bake for 25-35 minutes or until set.

Remove from oven and let cool completely before cutting. Cut into triangles.