Congo Bars

Ingredients

• 2/3 c. butter
• 1 lb. light brown sugar
• 3 eggs
• 2 2/3 c. plain flour
• 2 1/2 tsp. baking powder
• 1/2 tsp. salt
• 1 lg. pkg. chocolate chips
• 1 c. nuts
• 1 tsp. vanilla