In a large mixing bowl, beat butter and sugar until creamy. Add in eggs one at a time, beating after each addition. Add in flour, cinnamon, salt, baking powder and spices.
In a large 15 X 10 inch baking sheet (with 1 inch sides or more), spread 2/3 of the batter in bottom of the pan. Top with 2 cans of fruit filling, spreading evenly. Drop remaining batter in teaspoons on top of the fruit filling.
Bake in 350 degree oven for 33-37 minutes, until done. Allow to cool slightly before applying glaze.
For glaze, whisk together the powdered sugar, cinnamon and milk until desired consistency. Drizzle onto warm pie bars.
Bars are delicious served with vanilla bean ice cream! Store remaining bars in refrigerator.