Chess Bars
["3/4 c. butter, melted", "1 box light brown sugar", "3 eggs, beaten", "2 c. flour", "1 tsp. vanilla", "1 c. chopped nuts"]
["Mix all ingredients and press in a 9 x 13-inch pan.", "Bake for 30 minutes at 350\u00b0."]
["butter", "light brown sugar", "eggs", "flour", "vanilla", "nuts"]