Combine sugar and cinnamon. Cut in butter until mixture resembles coarse crumbs. Place 1 tablespoon mixture in center of each square. Bring up corners, seal edges to within 1 inch of top. Fold back points to make an opening in the top. Place in greased 11 x 7 inch pan. Bake 20 to 25 minutes until golden brown. Serve warm with sauce.

MILK SAUCE: In saucepan combine sugar, flour and salt. Gradually add milk; stir, add butter. Bring to a boil over medium heat. Boil 1 minute. Remove from heat. Stir in vanilla.