The only changes I made to the recipe was substituting a carrot from our garden for the brown sugar. I read on another pizza recipe site that carrots can help add sweetness (not to mention sneaking extra veggies into the kids). All three of mine devoured the pizza, the littlest two knowing no difference, and the eldest who knew I had made the sauce and said it was even better than what we had had before! Win! Next time I may even add a red pepper. Sneaky sneaky.
This recipe made up 3 portions worth of sauce. I portioned out the remainder (we made one pizza to eat) and froze the extra in ziploc bags. When I know we are having pizza night again, I'll just pull one out the night before to defrost. (Hint - if you freeze it flat it will defrost quicker!).