Preheat the oven to 350.
To make the dough, cream together the butter, vanilla and brown sugar until smooth.
Add in the dry ingredients and mix until the dough comes together.
In a separate small bowl, whip the egg white until bubbly and frothy.
Using a small cookie scoop (2 tsp) scoop out a cookie, then dip the cookie in the egg white.
Next, dip the cookie into the chopped pecans.
Lastly, using your thumb or the back of a teaspoon measuring spoon, create an indentation in the center of the cookie.
Place the cookies on a parchment paper lined baking sheet and bake the cookies for about 10 minutes until just lightly golden on the bottom.
Remove from the oven and allow to cool.
While the cookies are baking, prepare the glaze frosting. Add the melted butter, powdered sugar, vanilla and almond milk to a small bowl and whisk until smooth.
After you remove the cookies from the oven, you can reshape them if they have spread slightly. You can also reshape the indentation if it has risen some.
Once the cookies are completely cooled, pour a small bit of the glaze frosting to the center of each cookie. Bonus: For a clean look, add your glaze frosting to a squeeze bottle or piping bag for more control over your frosting pour.