Preheat the oven to 375°F. Line a 9x9-inch baking pan with parchment paper that hangs over the sides for easy removal. Set aside.
In a large bowl, beat butter and sugars until light. Beat in eggs.
3/4 cup salted butter, 1/2 cup (100g) granulated sugar, 1/2 cup (100g) light brown sugar, 2 large eggs
Add maple syrup, vanilla extract, and maple extract. Beat again to combine.
1/2 cup real maple syrup, 1 teaspoon pure vanilla extract, 1/2 teaspoon maple extract
Stir in flour, salt, and baking soda, just until combined.
2 cups (282g) all-purpose flour, 1 teaspoon salt, 1/2 teaspoon baking soda
Stir in 1 1/4 cups of the chopped pecans.
1 1/2 cups chopped pecans
Spread batter into prepared pan. Sprinkle top with remaining pecans.
Bake for 30-35 minutes until a toothpick inserted into the middle comes out with just a few crumbs.
Cool, then cut into squares.