Vinegar
Flavour Profile
Sharp, acidic and bright. Depending on the base—be it grape, apple or grain—it can range from harshly sour to deeply sweet and fruity.
It provides the necessary contrast to salt and fat.
Health Benefits
Vinegar does nothing for you nutritionally. Unless you count a few trace minerals depending on the type, but honestly, don't bother. Its job is to make food taste good. End of story.
Buying Tips
Avoid 'spirit vinegar' for cooking; it's mostly for cleaning windows.
Look for vinegars with a bit of sediment or 'the mother' for more depth.
Good balsamic should be thick and syrupy, not watery and dyed with caramel colour. If it's cheap, it's just red wine vinegar with sugar.
Storage
Keep it in a cool, dark cupboard. It's essentially wine that has already 'gone bad', so it’s incredibly shelf-stable.
Don't worry about the cloudy bits that might develop over time; that's just natural bacteria and it won't hurt you.
Cooking Uses
Use it to deglaze a pan after searing meat to lift those tasty brown bits off the bottom.
A splash of vinegar in water when poaching eggs helps the whites set faster.
It also balances heavy, fatty dishes like stews or roasts that feel a bit 'flat'.
Forkin' Food Theory
Acidity is the volume knob for flavour.
If a dish tastes dull or 'missing something' but you’ve already added enough salt, it almost always needs acid.
Vinegar doesn't just add sourness; it physically changes how your tongue perceives other flavours, making sweetness taste less cloying and saltiness taste more defined.
If your soup is boring, don't reach for the salt. Reach for the vinegar.