Tough pot roast: Needs more time not done. Return for 30 min increments. Sauce too thin: Cream added too early or not enough collagen released. Simmer 5 min on the stovetop after shredding. Sauce separated: Cream simmered too long. Add cream in the last 30 min only. Slow cooker: Sear first. Build sauce. Transfer. LOW 8 to 10 hours. Add cream for the last 30 min on HIGH only.