Sounds like you're on the right track Ducks. My only bit of advice to add would be that you as the parent need to be flexible about the chore thing, as in, what motivates them today might not be as effective in 6 months or a year.
Oh, one other thing. If they want to help with cooking I think you should let them. It's a wonderful skill for kids to learn when they're young, and getting in the habit of helping out with meals is only going to be a benefit to you in the end. Even Max helps out in the kitchen. He has a special knife that he uses to cut up things like mushrooms or bananas or eggs. Sometimes he can do a bit of stirring or he might pour stuff into the bowl. Just little stuff, but he feels good about helping, and in the end, it does help, because now he knows how to do those certain little things. Give it a go. Don't be scared.
