A Slow Beef Melt

Rump roast is a chewy piece of meat, but it makes up for that in flavor. I have had a Crock-Pot for years but almost never used it. Some kind person sent me a rice cooker thinking, I suppose, that it could compensate for the loss of noodles in my diet. I almost always cook rice the way I have for years, but I discovered the virtues of the rice cooker as a slow cooker for meat and beans. Its temperatures are much more stable than those of the old Crock-Pot, and it heats up more quickly. I wa