Creating Peach Cake with Brown Sugar Frosting is effortless when you follow these detailed steps:

1. Preheat oven: Set your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Combine dry ingredients: In a large bowl, whisk together the flour, granulated sugar, brown sugar, baking powder, baking soda, and salt until fully mixed.
3. Cream butter: In a separate bowl, cream the softened butter until light and fluffy, about 2-3 minutes.
4. Add eggs: Beat in the eggs, one at a time, ensuring each is well incorporated before adding the next.
5. Incorporate buttermilk: Gradually add the buttermilk and vanilla extract to the mixture, mixing well until combined.
6. Combine mixtures: Gradually add the dry ingredients to the wet mixture. Stir just until combined, being careful to avoid overmixing.
7. Fold in peaches: Gently fold the diced peaches into the batter until evenly distributed.
8. Divide batter: Pour the batter evenly into the prepared cake pans.
9. Bake: Place in the preheated oven and bake for 30-40 minutes, or until a toothpick inserted in the center comes out clean.
10. Cool cakes: Remove from the oven and let the cakes cool in the pans for about 15 minutes. Then transfer to wire racks to cool completely.
11. Make frosting: For the frosting, melt the butter with brown sugar in a saucepan over medium heat. Stir until smooth, then add milk and bring to a boil. Remove from heat and mix in powdered sugar and vanilla until smooth.
12. Frost cakes: Once the cakes are completely cool, spread the brown sugar frosting evenly over the top of one layer. Place the second layer on top and frost the top and sides as desired.

By following these simple steps, you’ll create a delicious Peach Cake adorned with a brown sugar frosting that will make any occasion special!