Preheat oven to 350F.

Prepare a 9x9 square baking pan with parchment paper with a little extra on opposite sides so you can lift the bars out of the pan later.

Using a food processor, mixer, or mix by hand with a spatula, cream the sugar and butter. Add apple sauce and vanilla extract and beat until combined.

Sift in baking powder and flour and stir until crumbly.

Press half the mixture into the prepared baking pan. Use the bottom of a class to make it flat if you'd like, but your hands will do the trick. Bake for about 15 minutes or until the edges are slightly golden.

Meanwhile, prepare the peach filling by draining the canned peaches. Transfer peaches to a mixing bowl and add sugar, cinnamon, and cornstarch. Stir to combine.

Once the crust of the bars are baked, add the peach filling, then evenly distribute the remaining half of the crumb/crust on top. Bake for another 30-40 minutes until the top is golden.

Gently lift the parchment paper and remove the bars from the pan to let cool on a wire rack until completely cooled. Cut into squares. Enjoy!