Yeah some of those sound like decent novelties. Tea ice cream sounds good. But notice in each of these situations it’s being used far more like a fruit than bay or oregano would be. It’s never “do you know what this dish could really use? A bit of tea” no its “let’s build a dish to show off that we can use tea culinarily” its never curry with tea in its masala. It’s never used to spice up your rice. It’s never part of your dry rub. It’s never thrown into your soup or stew.
Coffee is good in dark sauces and ice cream. Properly made mole (árbol, iirc) with chocolate is divine, but time and labor intensive. I've never attempted it, but I bought a jar of the hard, oily stuff last shopping fr trip I did, which doesn't have cocoa. It was an impulse buy, since it's really too warm to be making such a heavy dish, barring an Easter cold snap that's chilly enough, and I doubt I'll make it then, since I'll be busy for a few months. If you can get authentic, freshly made, I strongly recommend it.
I tried making rice with coffee once. It was fucking awful, but it was pointed out to me would make an awesome base for rice pudding. I hate rice pudding. I don't know why I do the things I do.
Oh goodness, see what you've done? Earl Grey is my favorite (hot) tea (it's not bad iced, either) and no access to that! It's rare I have an attack of FOMO, but I do now!
ETA: there is one near someone I've not seen in a few months. I could get her to visit but getting her to bring something I want that she'd have to go out of her way to get is the trick. And she doesn't like Earl Grey, so a promise to share won't work. Thanks for the review, though, I'll look for it tomorrow when I go out of town, assuming my transportation has no problem with it.