I also think cookie cutters would be fun. A memory I will never forget is my M. letting me sit on top of the counter and use the electric hand mixer. You just have to make sure she doesn't lift it out of the batter while it's still on! >: ) But I loved that. I let my toddler put the Tollhouse preformed cookies on the sheet and I put them in the oven. He's convinced HE cooked them, lol. We like to watch the minutes count down, so you can turn that into a fun game too.
Another thing, Crate and Barrel and I think now Target has this set of beautiful multi-colored bowels. It's a set of maybe 10 or 12 of them that nest inside one another. Maybe have her help you measure everything out into each bowl, read through the directions aloud and have her pour each thing in as directed. Tell her "pour in the sugar from the green bowel and then next pour in the brown sugar from the red bowl." That would be a little twist on it. And then that can be "her" set of bowels to use.