Preheat the oven to 350°F (175°C).

Prepare the crust by mixing softened butter, granulated sugar, flour, and salt in a bowl until combined and crumbly.

Press the crust mixture into the bottom of a greased 9x9 inch baking pan.

Bake the crust for 15-20 minutes or until lightly golden.

In a separate bowl, whisk together the maple syrup, eggs, vanilla extract, and sea salt until smooth.

Stir in the chopped pecans into the filling mixture.

Pour the filling over the pre-baked crust and smooth the top.

Bake for an additional 25-30 minutes or until the filling is set.

Let the bars cool completely in the pan before slicing.

Slice into squares and enjoy!