I did something stupid while making dinner: I used ketchup when I knew better. Normally, ketchup is an ok sub for tomato paste—-normally, but instead of a balanced, slightly vinegary ketchup, I only had a sweet (and therefore, gross) ketchup which made my tomato sauce sweet and spicy with a less-than delightful chemical aftertaste. I don’t think it went very well with my eggplant. It would have gone well, except that I used half ketchup/half tomato paste to make the sauce. Sigh. At least now I know never to trust ketchup.