Cheesy Horseradish Mashed Potatoes

This is a great side dish with prime rib or any beef dish.

Peel a couple of pounds of Yukon gold potatoes and boil them until tender, about 15 minutes. 

Drain and mash with a few cubes of butter.

Add in some sour cream, horseradish and grated cheddar.  I used horseradish cheddar for extra flavour, but regular aged cheddar is fine too.

Mix it all together and fold in some chopped chives.

Serve with beef and Brussels sprouts.