All my toms and potatoes have been blighted. Ripped up all 15 tomato plants and cut down all the potatoes. We didn't get to eat one tomato :'(
did you save the green tomatoes? They will ripen on the windowsill and be ok to eat.
But only if they ripen before the blight develops on them....if not they develop an unpleasant taste as they brown.
A few years back, when I had a really bumper tomato crop hit by blight, I acted quickly collecting the fruit at the first signs of blight on the leaves. We made chutney and tomato sauce but even then we had to throw loads of fruit away as the infection had spread in through the skins and discoloured them. They tasted sleepy and unpleasant. Beware....if infected they will not last.