Browned Butter Brownies

Here is another recipe I stumbled upon, and loved. Enjoy! 😀

Ingredients:
3/4 cup butter
1 1/4 cups sugar
3/4 cup cocoa
1 tsp vanilla
1/4 tsp salt
2 large eggs
1/3 cup plus 1 tablespoon unbleached all purpose flour
1/2 cup chopped walnuts or pecans (optional)