Mix the broth, soup mix and the Pepsi in the crock pot and stir to mix.
Add the roast and cook on low for @ 5-7 hours.
Turn occasionally.
This is the basic recipe.
I usually add crushed garlic and chopped onions.
If you leave the roast for 7 hours, you will get a "pulled beef", just shred it with a fork, awesome on buns.
You can also remove the roast after @3 hours and slice the roast and then return the slices to the crock pot for @3 more hours, roast beef fit for company!