Prep the peaches: In a mixing bowl, combine the sliced peaches with brown sugar, cinnamon and nutmeg. Mix well, and set aside.
4 Peaches, ½ cup Dark brown sugar, 1 teaspoon Ground cinnamon, ¼ teaspoon Ground nutmeg, ½ teaspoon Sea salt
Cream the butter: Add the softened butter and granulated sugar to the mixing bowl of a stand mixer. Using the paddle attachment, cream the butter and sugar together until the butter and sugar mixture is light and fluffy.
1 cup Salted butter, 1 cup Granulated sugar
Add the eggs: Add the eggs and vanilla to the creamed butter and sugar, and beat together with the paddle attachment until the mixture is smooth. You will need to do this on a higher speed to incorporate the eggs and butter properly. The mixture may appear separated at first, but continue to mix past that stage.
4 Large eggs, 1 teaspoon Vanilla extract
Add the dry ingredients: While the mixer is running, add the flour and spices to the mixer in batches. Incorporate all of the flour into the wet ingredients, until a smooth batter has formed.
1 ¾ cups All purpose flour, 1 teaspoon Ground cinnamon, ¼ teaspoon Ground nutmeg
Grease the pan: Spray a bundt or cake pan with cooking spray, or grease with butter. Pour the peach mixture into the cake pan and spread out so the peaches are in an even layer.
Add the batter: Top the peach mixture with the mixed cake batter. Spread the cake batter with a rubber spatula to ensure that the batter is flat and evenly spread out.
Bake: Bake the pound cake for 25-30 minutes. A toothpick or a knife should come out clean if inserted into the cake. Remove the finished cake from the oven, and let it cool for 5 minutes.
Serve: Using proper oven mitts, carefully flip the cake over onto a cake stand of a serving board. Give the cake a second to release from the bundt pan, and then remove the pan from over top.