01 -
Preheat oven to 350°F (175°C). Spray a 12-inch Bundt pan with baking spray and set aside.
02 -
Combine ½ cup granulated sugar with cinnamon in a small bowl and set aside.
03 -
Place diced peaches in a small bowl and toss with 2 tablespoons of flour.
04 -
In a large bowl, cream together the butter, cream cheese, and granulated sugar until well-blended and fluffy.
05 -
Add the eggs and egg white, one at a time, beating well after each addition. Mix in the vanilla extract.
06 -
In a separate bowl, whisk the remaining flour with baking powder and baking soda.
07 -
Gradually alternate adding the flour mixture and buttermilk to the creamed mixture, beating after each addition until just combined.
08 -
Gently fold the diced peaches into the batter.
09 -
Pour half of the batter into the prepared Bundt pan. Sprinkle with half of the cinnamon sugar mixture. Add the remaining batter and sprinkle the top with the remaining cinnamon sugar. Run a knife through the batter to create a swirl.
10 -
Bake in the preheated oven for 55 to 65 minutes, or until a toothpick inserted in the center comes out clean.
11 -
Allow the cake to cool in the pan for 15 minutes, then transfer it to a wire rack to cool completely.
12 -
Dust the cake with powdered sugar before serving, if desired.