Creating Brown Butter Peach Bars is straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×9-inch baking pan and line it with parchment paper for easy removal.
2. Brown the Butter: In a saucepan over medium heat, melt the unsalted butter. Continue cooking, stirring frequently, until the butter turns golden brown and has a nutty aroma. Be careful not to burn it. Remove from heat and let it cool slightly.
3. Mix Sugar and Eggs: In a mixing bowl, combine the brown butter and granulated sugar. Mix until well combined. Add the vanilla extract and eggs, whisking until smooth.
4. Combine Dry Ingredients: In a separate bowl, whisk together the flour, baking powder, and salt.
5. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, stirring until just combined. Do not overmix.
6. Add Peaches: Gently fold in the sliced peaches, ensuring they are evenly distributed throughout the batter.
7. Pour into Pan: Pour the batter into the prepared baking pan, spreading it evenly.
8. Bake: Place in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool: Once baked, remove from the oven and let it cool in the pan for about 30 minutes. Then transfer to a wire rack to cool completely.
10. Slice and Serve: Once cooled, cut into squares and dust with powdered sugar if desired.

These steps will guide you in creating these delicious Brown Butter Peach Bars effortlessly!