Sharp-Tasting Grapes

[Khandro]

Yesterday, leaving Alsace I bought a punnet of grapes which were described as 'Table Grapes', I was also buying other things & took the sellers at their word without tasting one. Now home I find they are not exactly sour, but too sharp to eat as fruit.
Can anyone suggest how I can use them please?

[ummmm]

Leave them a few days to sweeten.

[Old_Geezer]

Aren't they grapes for leaving on the table, as opposed to eating ?

[237SJ]

Make grape jelly?

[Captain2]

Try them with some strong cheeses (Blue Stilton, Roquefort, for example) - see what they do with the grapes.

[dannyk13]

Are they white grapes, if so you could use them in a chicken dish:-

http://chezbonnefemme.com/recipes/chicken-veronique/

[Khandro]

Thanks to all, I'll try ummm's suggestion of waiting - doing nothing is always a preferred option. If that fails I'll try the Veronique though that will only account for a cup full.
I thought of trying to make some kind of jam, but Mrs Khandro says I will only waste sugar & make something messy, she has little confidence in my culinary expertise!