Just a stick of butter?...No extra water, broth, or anything, iyo?
"Put a stick of butter, One packet of Onion Gravy powder and One envelope of Au Jus mix
and let it sit all day on low. It's the best roast I've ever had. I thought it was BS until I tried it,
but that stick of Butter keeps it juicy and moist. Make sure it's real Butter.
Also some people add a packet of Hidden Valley Ranch dressing powder too."