Grandma Mason'S Congo Bars
["1 lb. brown sugar", "2/3 c. melted butter", "3 eggs", "2 1/2 tsp. baking powder", "1/2 tsp. salt", "1/4 tsp. baking soda", "1 c. nuts", "1 pkg. chocolate chips", "1 Tbsp. vanilla"]
["Preheat oven to 350\u00b0.", "Pour melted butter over sugar.", "Stir. Add the rest of the ingredients and mix well.", "Pour into 10 x 15-inch greased and floured baking dish.", "Bake at 350\u00b0 for 45 minutes."]
["brown sugar", "butter", "eggs", "baking powder", "salt", "baking soda", "nuts", "chocolate chips", "vanilla"]