Buttermilk's palate-cleansing tartness is one reason it's used a lot in southern India, where meals often end with a small bowl of the stuff served with plain rice and pickles.
Salbitxada is a sharp and lightly sweet Catalan sauce that's traditionally served with calcots - spring or salad onions, grilled whole, make a good substitute.
Fresh egg pasta is traditionally served in the north of Italy with butter, cream and rich meat sauces, whereas dried pasta is more at home with the tomato- and olive oil-based ones of the south.
One Indian-inspired favourite of mine is mashed potato mixed with lemon juice, breadcrumbs, coriander and chilli, shaped into patties, fried and served with chutney and yoghurt.
Food that's served at the table in a paper parcel always creates a remarkable culinary moment when opened, because the package is full of aromatic steam from the lightly cooked ingredients inside.
I have been cooking with preserved lemon for years, using it left, right and centre, but I am still far from reaching my limit.