A suitable alternative for a port substitute in a recipe is Grape Juice or cranberry juice mixed with a small amount of vinegar or lemon juice to mimic the acidity of port.
A suitable substitute for ruby port in this recipe could be a sweet red wine or grape juice mixed with a bit of lemon juice for acidity.
You can substitute ruby port in a recipe with a combination of grape juice and a small amount of red wine vinegar or balsamic vinegar for a similar flavor profile.
Sherry, Port, Marsala or Brandy
You can substitue any kind of sherry for madeira (both are fortified wines). I personally like Golden Cream.
Use a sherry of the same sweetness as the Madeira in the recipe. Use port or Marsala as a substitute for a sweet Madeira. All of the above will be quite close to the original flavor. If absolutely desperate you could try dry/sweet vermouth but the taste will be more than a little different.
You can substitute Madeira for sherry for the most part, however, as an aperitif, Sherry Amontillado is my preference. Mario Lopez
A dry port, marsala, a dry sherry or even beef stock may be used as a substitute to madeira.
It depends what the recipe is. For example, for sweet recipes (eg with prunes in them, which are often paired with Armagnac), I would use another sweet brandy, or Marsala or Port, as Whisky would be too dry in my opinion. For savoury recipes, Whisky may be the better choice. Try it though and see what you think - you may discover it is the perfect substitute,
You could, but the taste would be completely different.
A good alternative for a RS 232 would be modern USB ports. The RS 232 is a serial binary single ended data port. This port is common on computers; however, recently this port has been replaced by USB ports.
Pedro Ximenez sherry, recioto della valpolicella could be used for ruby port or Cream or olorosso sherry could be used for tawny port
You could substitute rice vinegar for cooking sherry. Rice vinegar has a mild, sweet flavor.