CRUST: Mix flour and salt in a bowl. Cut in shortening with a fork. Add water 1 tablespoon at a time, gently tossing with a fork. Divide dough in 1/2. Place each 1/2 in a square of waxed paper. Pull up paper at four corners, twist shut and press dough ball together with hand. Chill 30 minutes. Then roll out to 1/8 inch thick. Roll out pastry (1/2 at a time) in a rectangle shape. Cut each 1/2 into 4 rectangles.

Cut bananas in 1/2 crosswise and place each piece on one pastry square. Mix brown sugar with mace and place a spoonful on each banana. Roll up the banana in the pastry and moisten to seal the ends closed. Bake on an ungreased cookie sheet, 10 to 12 minutes at 450 degrees. Serve with ice cream.