I know this isn't a recipe to eat, but it's a fun food activity for kids while you're cooking in the kitchen! My girls loved it and we ended up buying a HUGE jug of vinegar to do this more often!
What you'll need: vinegar, baking soda, food coloring, medicine droppers/spoons, containers that prevent spilling
Cover bottom of container with baking soda. In separate cups, put vinegar and a few drops of food coloring. Let kids use droppers or spoons to add vinegar to soda. Watch it bubble and fizz! We also used it as a color activity--see what colors are made from mixing. Have fun!!