Combine the ingredients for the crust with a fork or a pastry blender. Pat evenly into the bottom of a lightly greased 9 X 13-inch pan with oiled fingers.
Bake the crust for 12 minutes in a 350-degree oven until lightly brown and set.
To make the topping, mix all the ingredients in a bowl, then pour over the prepared crust, making sure it coats the crust evenly. Use a spatula or the back of a spoon to smooth it out.
Bake for about 22-25 minutes or until the topping has set.
To make the glaze, mix the ingredients for the glaze into a smooth paste. When the bars are still hot, spread the glaze over the bars or drizzle in a decorative pattern. Allow the bars to cool completely, then cut into bars with a sharp, serrated knife.