Place roast beef into the insert of your slow cooker.
In a 2-cup measuring cup, mix together all remaining ingredients.
Pour over roast beef and set the timer for your slow cooker. (4 hours on High or 6-8 hours on Low)
Once roast beef has cooked, remove from slow cooker with tongs into a serving dish. Break apart lightly with two forks and then ladle gravy over roast beef.
Notes
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