6 hours ago, Smithy said:I looked at the recipes for banana catsup, then thought I might like to try some first. It's available on Amazon - that is, the stuff favored by @johnnyd, which I assume is the one @ElsieD and @blue_dolphin prefer. I also note that the prices are all over the place. I'll look around in stores to see if I can find it there first.
If you are in Tucson soon, check Lee Lee International Market on Orange Grove Rd. They have a very good selection of sauces. Here's a photo from a few years ago of the Filipino section with some of the banana sauces, but they have various other cuisines represented also.