Preheat oven to 450 degrees

Mix the apple sauce, spices, corn starch and maple syrup in a small pot over low to medium heat. While it is heating, cut your pie crust into rectangles however big you would like your tarts to be. You will need a top and bottom, so if you make 8 rectangles, you will have 4 resulting tarts.

On half of the pie crust rectangles, use a fork to poke vent holes for the tarts.

Once the apple sauce pie mixture has heated up, but not boiling, remove from heat and put a spoonful (about a table spoon) onto the other half of the pie crust rectangles.

Gently spread the mix into a shallow layer onto those pie crusts, and place the rectangles with the fork holes on top forming the sandwhiched tarts. Use the fork to press the edges of the tarts together.

Whisk the egg and gently brush onto your pie tarts so they will for a darkened crusty shine when baked.

Bake for 12-13 minutes. Let cool.