Perfect Roast Every Time! Place 2-3 lb roast in a crockpot. I LOVE this one: great size, easy to use, auto sets to Warm after cooking, easy to clean and stylish in my kitchen. Add 2-3 cups beef broth and sprinkle package of Lipton onion soup mix on top. Cook on high until fork tender. About 8 hours. SO GOOD!!!!! LTKHome LTKFindsUnder50