Creating Heavenly Summer Peach Bars is straightforward and fun when you follow these steps:

1. Preheat the Oven: Set your oven to 350°F (175°C) and grease an 8×8-inch baking dish.
2. Prepare Peaches: Peel and slice the fresh peaches. Set aside.
3. Mix the Base: In a large bowl, combine softened butter and granulated sugar. Beat until well creamed.
4. Add Egg: Incorporate the egg into the mixture, beating until fully combined.
5. Incorporate Flour: Gradually add the all-purpose flour to the mixture until a soft dough forms.
6. Spread the Dough: Take about two-thirds of the dough and press it evenly into the bottom of the greased baking dish.
7. Add Peaches: Distribute the sliced peaches over the crust you just pressed down.
8. Top with Remaining Dough: Crumble the remaining dough over the sliced peaches, ensuring they are covered.
9. Bake: Place the dish in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the filling is bubbly.
10. Cool: Remove the bars from the oven and let them cool in the pan for at least 30 minutes before cutting into squares.

These simple steps will reward you with Heavenly Summer Peach Bars that everyone will rave about!