I cannot cook a roast to save my life. They are always dry, even in the crock pot. I saw a recipe recently where you cook a roast in the crock with potatos, carrots, onion, and a can of coke. I shoved some garlic cloves into to it, sprinkled with salt and pepper, and it was dry as a bone. I had my inlaws over for dinner, and they were polite and said it was lovely.
What am I doing wrong?