This recipe is very simple, and one of our family favourites.
1/3 cup butter
1 cup brown sugar
1 tsp vanilla
1/2 tsp salt
1 cup flour
1 tsp baking powder
1/2 cup nuts or chocolate chips (optional)
Preheat oven to 350°F and grease an 8-inch square pan.
Melt butter. Stir in (do not beat) brown sugar, egg, vanilla, and salt. Sift flour and baking powder, and stir in. Add nuts or chocolate chips, if you’re using them.
Spread in greased pan and bake until lightly browned, approximately 18-20 minutes. Do not overcook, or the squares will not be as moist and chewy. Cool before cutting into squares.