Matbucha, said with a gutteral "ch" is a cooked tomato relish, that is cooked for many hours over a low flame, and whose recipe differs greatly depending on whom you ask! Here in Israel it is called a "salad" and is a universal dish eaten with challah at the shabbat table, together with an array of other salads (many other salads if you are Moroccan) that precede the fish course on Friday night.
Since matbucha is actually of Moroccan origin, I'm going to go out on a limb and tell you that the recipe I use is the real thing, and truly the most delicious. My recipe didn't actually come from my husband's family but rather from a Moroccan woman who told me "this is the real way" and after trying it myself and making it for many years, I have to agree. The only thing at all difficult about this salad is that you need to cook it for quite a few hours, and to watch the pot, but I was thinking that it could certainly be made in crock pot for those of you who dare!
This salad is so popular in our family, that if it were absent from the shabbat table I can almost be certain that there would be actual crying, Between you and me, I would miss it too so I'm planning on testing my theory!