Step 1

Place the mashed potatoes and raw grated potatoes in a large mixing bowl, whisk together until well combined. Add the egg, egg white, grated Parmesan cheese, garlic powder, milk and oil to the bowl, whisk until completely incorporated.

Step 2

In a separate large bowl, combine the flour, baking powder and salt, stir to combine. Stir the dry ingredients, into the wet ingredients until a soft dough is formed. Lightly flour your counter top, place the soft dough on the floured counter top and kneed 6 -7 times. Gather the dough up and form a ball, place it in an oiled 8 inch cast iron pan. Using a serrated knife (a steak knife worked well) cut an x on the top of the dough. Bake at 375 degrees for 45-55 minutes. It should be golden brown on top. Cool on a wire rack about 10 minutes. Run a butter knife around the edges of the pan to release the bread , remove from pan, place on a cooling rack to cool completely before slicing.