Root Beer Pulled Pork Crockpot Recipe I sprinkle the roast with Worcestershire sauce while it's cooking, before it breaks up. For a healthier version --Halfway through cooking (about 3- 4 hours) I empty out the excess juice/grease from the crock pot. Replace lost grease and other liquid with another can of rootbeer. Add about 1/2 chopped Vidalia onion. Sprinkle more W-Sauce directly onto the roast and a few hours later it is PERFECT!