Place the pork roast into the electric pressure cooker insert with the hot water. Season with salt, pepper and cinnamon.
In a small mixing bowl, combine the whole cranberries with the spicy mustard.
Pour the sauce over top of the pork roast.
Steam valve: Sealing.
Cook on: Manual/High for 40 minutes.
Release: Natural or Quick.
Prepare the mashed potatoes and veggies.
Serve Instant Pot Cranberry-Mustard Pork Roast with a side of mashed potatoes and veggies.