Preheat your oven to 350°F (175°C). Spread the chopped pecans evenly on a baking sheet and toast them for about 5-7 minutes, stirring once halfway through. Keep a close eye to avoid burning. Once toasted, set them aside to cool.
In a large mixing bowl, beat the softened unsalted butter with powdered sugar until the mixture is pale, creamy, and fluffy. This should take about 2-3 minutes with an electric mixer on medium speed.
Mix in the maple syrup and vanilla extract until well incorporated. The batter will be rich and fragrant, setting the tone for your cookies.
In a separate bowl, whisk together the all-purpose flour and salt. Gradually add this to the wet ingredients, mixing on low speed or folding with a spatula until the dough just comes together.
Gently fold the toasted pecans into the dough, distributing them evenly without overmixing.
Scoop the dough onto a sheet of parchment paper and form it into a log shape about 2 inches in diameter. Wrap it tightly and refrigerate for at least 30 minutes. Chilling firms up the dough, making it easier to slice.
Preheat your oven to 325°F (160°C). Remove the dough log from the fridge and slice into 1/4-inch thick rounds. Place them on a parchment-lined baking sheet, spacing them about 1 inch apart.
Bake the cookies for 15-18 minutes or until the edges are lightly golden. Avoid overbaking to keep them tender and buttery.
Transfer the cookies to a cooling rack and let them cool completely. Enjoy with a cup of tea or coffee.