01 -
Preheat your oven to 175°C (350°F) and grease a 9-inch round cake pan. Line the bottom with parchment paper and set aside.
02 -
In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar together with a hand or stand mixer on medium speed until light and fluffy (about 3-4 minutes).
03 -
Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
04 -
In a separate bowl, whisk together the flour, baking powder, baking soda, cinnamon, and salt.
05 -
Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk. Start and end with the dry ingredients, mixing until just combined. Do not overmix.
06 -
Gently fold in the diced peaches using a spatula, ensuring they are evenly distributed throughout the batter.
07 -
Pour the batter into the prepared pan, smoothing the top with a spatula.
08 -
Bake in the preheated oven for 40-45 minutes, or until a toothpick inserted in the center comes out clean.
09 -
Let the cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
10 -
If desired, dust the cake with powdered sugar before serving.