In a mixing bowl whisk the melted butter, brown sugar and cinnamon together until well combined. Stir in the diced peaches.In a large bowl, whisk the flour, baking powder and salt together until well combined.
Bake the peach pound cake bundt for 60 - 70 minutes. Cool the cake in the pan for 10 minutes. Make the vanilla bean glaze by whisking the powdered sugar, vanilla bean paste and milk until well combined.