Add all the liquid ingredients to the bread machine pan (water, eggs, vinegar and oil. Blend together with a fork
Evenly distribute mashed potatoes over the bottom of the bread machine pan. Try to bread up any larger clumps. You can sprinkle the sugar in at this time as well.
Add the whole wheat flour, salt and bread machine yeast
Start the machine on the bread cycle and monitor as it mixes the ingredients. Add additional water as necessary until all the ingredients are formed together into a very sticky dough. This dough should be much stickier than what you would work with by hand.
Close the machine and allow to bake. Remove once the bread has been baked.