Making the Brown Sugar Peach Cake is a straightforward process. Follow these steps to achieve a delicious outcome:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan.
2. Mix Butter and Sugar: In a large mixing bowl, cream together the softened butter and brown sugar until light and fluffy.
3. Add Eggs: Beat in the eggs one at a time, mixing well after each addition.
4. Combine Dry Ingredients: In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
5. Mix Wet Ingredients: In another bowl, combine the buttermilk and vanilla extract.
6. Combine Mixtures: Gradually add the dry ingredients to the butter mixture, alternating with the buttermilk mixture. Mix until just combined.
7. Fold in Peaches: Gently fold in the sliced peaches, ensuring they are evenly distributed throughout the batter.
8. Pour Batter: Pour the batter into the prepared baking pan, spreading it evenly.
9. Sprinkle Cinnamon: If desired, sprinkle ground cinnamon over the top of the batter.
10. Bake: Place the pan in the preheated oven and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean.
11. Cool: Once baked, remove the cake from the oven and allow it to cool in the pan for about 15-20 minutes. Then transfer it to a wire rack to cool completely.
12. Dust with Powdered Sugar: Before serving, dust the top of the cake with powdered sugar for a lovely finishing touch.

With these steps, you’ll have a beautiful and delicious Brown Sugar Peach Cake ready to share and enjoy.