Sherry vinegar (Vinagre de Jerez) must be one of the most neglected condiments. It should really be a staple item in the kitchen cupboard. Chefs have been onto sherry vinegar for decades, but for some reason it has passed the general public by, pushed aside in the rush for “easy-drinking” balsamico style vinegars. Sherry vinegar is not “easy-drinking”. It is complex and intense, but works magic on many dishes and anyway, proper Gazpacho just doesn’t taste right without it.
For as long as wine has been made in Jerez, vinegar has been a by-product. In a sherry Bodega vinegar was seen as a failure, especially if too many of the butts turned. However from about the 1950s things started to change and most people I speak to around here agree that Pilar Aranda, owner of the Almacenista Fermin Aranda, was the first person to recognise sherry vinegar as a product in its own right and she started “looking after” her vinegars, ageing them in a solera system, just like her wines. Sherry vinegar is now even protected and is one of only three vinegars in the word with Denomination of Origin. More recently the Fermin Aranda business, with its fantastic vinegar soleras, was bought by the bullfighter Alvaro Domecq, along with his family. The Consejo Regulador, who regulate production, currently use the Alvaro Domecq Reserva vinegar as their house vinegar, so it is obviously still very good!
With advances in science sherry vinegar is no longer a mysterious and spontaneous occurrence and now the best vinegars are deliberately made, often by topping up butts already containing vinegar with sherry. The alcohol quietly converts into acid, which can take months, even years, in the cool bodegas.
Some cheaper sherry vinegars are manufactured in large volumes, however even these vinegars require a minimum of six months in wood.
The effect of long aging on sherry vinegars is very apparent, they become very dark through oxidisation, developing intense and complex flavours. Surprising flavours develop over time, from fruity, banana skin right through to burnt, toasted and coffee, always with a woody and nutty backdrop. The Consejo Regulador has an age grading system: Vinegars with between 6 months and two years in wood are “Vinagre de Jerez”, those with more than two years but fewer than 10 are “Reservas” and anything with more than ten years in wood is a “Gran Reserva”. I personally think it’s pity they don’t put the approximate age of the vinegar on the label, the price of an 11 year old vinegar will be very different from a 50 year old vinegar even though they are both “Gran Reservas”, and there is at least one vinegar bodega I know of, Vinagres de Yema, who sell the 50-year-old stuff – in beautiful glass bottles. It’s not cheap, but if you taste a drop the flavour evolves in your mouth for hours afterwards. Sherry vinegars are run through a solera system, the same way as the wines and the brandies and this irons out annual variations, but is also used to increase quality.
Alongside the range of ages a sherry vinegar can have, there are also different styles. The sherry used to make the vinegar, ie. fino, amontillado or oloroso will influence the flavour – especially when younger – of the resulting vinegar. There is a sweetish style of vinegar made from the sweet Pedro Ximenez sherries. This can be made entirely from Pedro Ximenez, or a blend or could be a sherry vinegar sweetened with a small amount of PX wine. Sometimes “arrope”, a traditional grape must reduction is mixed in withresulting in a dark, syrupy and sweet vinegar. Moscatel sherries can also be used to make sherry vinegar, but these sherries and therefore vinegars are
Sherry vinegars are intense in flavour, but not only that, they are much stronger in acid than most other condiment vinegars. The degree of acidity (% acetic acid per volume) starts at 6 degrees (legal minimum) and I have tasted vinegars with 10 degrees. Normally a 10 degree vinegar is quite hard work straight-up in a sherry copita (which is how I think they should be evaluated), but I have had very old sherry vinegars which are so well integrated that their 10 degrees seems almost mellow. Always check the label for degrees of acidity before using a sherry vinegar. Six is low and 10 is high. You might need only a few drops of the stronger, older ones to perfume a dish of grilled fish, for example, just before serving.
As I mentioned right at the beginning. Gazpacho made with vinegar other than sherry vinegar just doesn’t taste right. There is an excellent book (in Spanish only and currentlyÃ‚Â out of print, sorry!) by Manuel Valencia, a famous Jerezano chef, and an expert in cooking with sherry vinegar. It’s called “La Cocina Gitana de Jerez” ISBN 84-935002-1-6. In Spain there are are as many recipes for Gazpacho as there are cooks, but I think Manuel Valencia’s is probably as close as you can get to something authentic. His recipe goes like this:
1kg ripe, red tomatos; 1 small piece onion (peeled); 3 de-seeded green peppers (the mild, long, thin pointy ones); 2 cloves garlic; 75ml mild olive oil (not spicy, peppery); 30ml sherry vinegar; 2 slices of bread (crust removed); 750ml cold water; salt. Once this was bashed up into a “soup” by hand with pestle and mortar, but a blender is more sensible. Purists peel and deseed the tomatos, but I just blitz them first and then seeve before putting the tomato juice back into the blender with the rest of the ingredients apart from the salt. After blending for a long time until very smooth adjust vinegar, oil and salt to taste. Chill before serving.
For me (many French chefs agree), there is nothing better than a vinaigrette made with sherry vinegar: 1 third sherry vinegar, 2 thirds oil (more old if the vinegar is a strong one), sugar or honey, salt, pepper, and a bit of dijon mustard. Shake up until emulsified. A tiny bit of crushed garlic is always an option.
Another southern Spanish favourite, which just doesn’t work without sherry vinegar, is “Patatas Aliñadas”.
Dressed potatos. Cook 1kg new potatos until done. While still warm quarter the large ones and halve the small ones into a bowl. Add one finely chopped onion. Drown in good quality, mild olive oil and then add sherry vinegar to taste (the sweet PX styles don’t work so well, so use a dry vinagre). Salt to taste. Chill before serving. For a common variation tinned tuna and/or piquillo peppers (chopped) can be added.
Justin is our Sherry wine expert, currently living in Andalusia with his wife, Lucy, while spreading the good word about Sherry vinegar from his online store.