** It is very important that you dice the onions very fine. If the chunks are too large, they won’t cook and you’ll have crunchy onions in your stew. Not so fun. Most slow cooker recipes have you saute the onions separately before adding them to the slow cooker, but lazy me hates that idea and as long as the onions are fine diced, there’s no need to. ** I used baked sweet potato because that’s what I had on hand. You can also use uncooked sweet potato, chopped small and then at the end of cooking, break it up with a potato masher to get that creaminess. Or, you could leave the small chunks as it. It’ll be good either way! ** All Natural peanut butter is very important! The only ingredient should be peanuts (and salt). No sugar, no corn syrup, no additional oil. These additional unnecessary ingredients will totally change the outcome of the stew.