Makes 18 squares.
2 cups brown sugar
2 large eggs
1 tsp pure vanilla extract
1 cup all-purpose flour
1/2 tsp baking soda
1/2 tsp salt
2 cups chopped walnuts
Preheat oven to 350°F. Coat a 9x13 pan with baking spray.
In a large bowl, mix sugar, eggs and vanilla. Stir in flour, baking soda and salt. Add nuts, mix well, and pour into the prepared pan. Bake 18-20 minutes.