As far as I'm aware, the traditional Greek tzatziki doesn't generally include mint at all.
It's a cucumber dip that is made of yogurt and sometimes includes dill or mint as a flavoring:
Tzatziki (Anglicized: /tsɑːtˈsiːki/ }; Greek: τζατζίκι [dzaˈdzici] or [dʒaˈdʒici]) is a Greek sauce served with grilled meats or as a dip. Tzatziki is made of strained ...
Mint chutney is normally almost all herbs (mint and cilantro), and it's ground/blended so it's completely green:
(from this mint chutney recipe)
I can't really see the chutney/dip in your picture that well. You say it was mint and yogurt, and it looks like it might be pale green, so I'd guess it just had overall more yogurt than usual. But as long as it's ...
I tried freezing tzatziki sauce but wasn't happy with it when thawed as it seemed to separate easily and even when mixed thoroughly it seemed to have a different, more watery texture than when fresh.
What I do now if I have cucumbers I need to use is to prepare and process them exactly as I would for fresh tzatziki sauce. I freeze the processed cucumber in ...
I wouldn't freeze tzatziki sauce.
Dairy practically never freezes well. It is a fat-water emulsion, and it is likely to change its structure a lot upon thawing. You have to prepare it and stabilize it a lot, and then also preferably use a special freezing method (such as making ice cream with agitated freezing).
The other part are the cucumbers, which ...
I haven't tried it, but I don't see why not. Sure, cucumbers have a lot of water, but you're already crushing them in a blender or processor to make the sauce, so you don't have to worry about bursting cell membranes.
I suppose if you made some kind of chunky tzatziki, you might be concerned about a change in texture. I've never seen a chunky tzatziki (and ...
I froze shredded cucumbers and used them a month later in tzatziki sauce. It turned out wonderful! First, I peeled and removed all cucumber seeds. Second, I shredded them. Third, I salted them and let them rest in my colander for about a half hour. Finally, I squeezed out as much water out as possible with paper towels. I placed them in Ziploc bag and ...
I don't know about the hardcore traditional rules, but for me, I can use it on absolutely everything, and when I am in Greece I do:
In addition to salad with bread
Alone with bread
As a dip with meat and bread
As a spread on bread
Alone, as a side / antipasti for drinks
Together with Mousaka
With fried / baked zucchini
Watered down as a cold summer ...