Peel the potatoes and cut into 1/4-inch-thick slices. Put the potatoes in a pot, cover with water and season with salt. Bring to a boil, reduce to a simmer and cook until tender, 7 to 8 minutes.
Meanwhile, heat the EVOO in a saucepot over medium heat. Add the bacon and cook until crisp, 2 to 3 minutes. Add the onions, chile, coriander seeds, mustard seeds and bay leaves, and cook until tender, about 5 minutes. Sprinkle with the sugar, then douse the pan with the vinegar and stir until combined. Add the consomme and cook until reduced to 3/4 cup.
Drain the potatoes, then toss with the dressing and the parsley in a large bowl. Season with salt and pepper and drizzle with EVOO.