Flatten them slightly with the back of the spoon or a small bowl while making a slight dent in the middle. Top each cookie generously with the crushed pecans.
Place the cookie sheet in the middle rack of the oven and bake it for 20-25 minutes or until the edges starts to brown. Turn it off and take out the cookies and place the sheet on a flat surface to cool down a bit.
Then, gently release the cookies from the bottom with a flat spatula and place them on the cooling rack to cool down completely. Enjoy them immediately or store them at room temperature or freeze them for later use.