Pre-heat oven to 350 degrees. Oil and flour a standard sized Bundt pan. In a Standing mixer bowl add oil and sugar. Mix in eggs. Add vanilla, and peach purée. Mix. Add dry ingredients and buttermilk and blend. Add chopped peaches if desired. Pour batter into the pan. Bake for 1 hour to 1 hour and 15 minutes. Cool and pour on glaze.
Peach Purée
Add peaches and water to a blender. Purée until smooth.
Glaze
Add ingredients to a small pot and cook until sugar is dissolved for about 5-10 minutes