Preheat your oven to 350°F (175°C).

In a medium bowl, whisk together 2 cups flour, 1 teaspoon baking powder, and ½ teaspoon salt.

In a large bowl, beat ½ cup softened butter and ¾ cup sugar until light and fluffy (about 3-4 minutes).

Mix in 1 large egg and 1 teaspoon vanilla extract until combined.

Gradually add the dry ingredients to the wet mixture, stirring until just combined.

Gently fold in 1 cup diced fresh peaches.

Drop rounded balls of dough onto a lined baking sheet, spacing them 2 inches apart. Bake for 18-20 minutes.

Allow cookies to cool for 5 minutes on the baking sheet, then dust with powdered sugar.