Creating delicious Peach Bars is straightforward if you follow these easy steps:

1. Preheat Your Oven: Set your oven to 350°F (175°C) and grease a 9×13-inch baking pan.
2. Make the Crust: In a mixing bowl, combine the softened butter and sugar. Cream them together until light and fluffy.
3. Add the Egg and Vanilla: Beat in the egg and vanilla extract until well combined.
4. Mix Dry Ingredients: In another bowl, whisk together the flour, baking powder, and salt.
5. Combine Mixtures: Gradually incorporate the dry ingredients into the wet mixture, mixing until a soft dough forms.
6. Press into the Pan: Spread about 2/3 of the dough evenly into the bottom of the prepared baking pan, creating a crust.
7. Prepare the Peach Filling: In a separate bowl, toss the diced peaches with lemon juice and ground cinnamon, if using.
8. Add the Filling: Spread the peach mixture evenly over the crust in the baking pan.
9. Crumble the Top: Take the remaining dough and crumble it over the peach filling.
10. Bake: Place the pan in the preheated oven and bake for 30-35 minutes, or until the top is golden brown.
11. Cool Down: Allow the bars to cool in the pan for about 20-30 minutes before cutting into squares.

These steps will guide you in creating a batch of Peach Bars that are sure to delight!