Cream butter and sugar.
Add egg, mix well.
In separate bowl mix flour, baking powder and salt.
Alternate adding flour mixture and milk to large mixture.
Place in greased 8 or 9 inch square pan.
Combine sugar, flour and cinnamon. Cut butter into mixture. Sprinkle over batter. Cook at 350 degrees for 45 minutes.
Not a NESTLÉ®-tested recipe.