Pressure Cooker Guinness Beef Stew With Horseradish Cream

fat trimmed and meat cut into 2-inch pieces

large, chopped

halved, optional

packed

or other stout beer

or stock

or Yukon gold, cut into 1- to 2-inch pieces

such as carrots, turnips, rutabaga, celery root, or parsnips, peeled and cut into 1- to 2-inch pieces

plus more to taste

jarred

minced, or chives