Mashed potatoes in bread dough

A reader has asked: A friend told me she adds cooked, mashed potatoes to her bread doughs and gets great results. How is this done?
A: You can add 4 to 6 ounces (by weight) of warm, cooked and mashed Idaho potato to any bread dough for a single loaf of bread and it will improve the flavor and make the bread have a great, tasty crust after it is baked. Add the potato to the other ingredients at the beginning of mixing. Two rules: Don’t add too much potato, and make sure the mashed potato is not hot when you add it or you may harm the yeast.