Try this,
from the "Winemaker and Brewer" magazine October 1984.
Green Tomato AperI.tive or Social wine by Tilly Trimbell.
4lb green tomatoes
1/2 lb sultanas
2 1/4 lb sugar
1 teaspoon bentonite,1 teaspoon pectolase,1 teaspoon nutrient, 1 tablespoon tartaric acid, campden tablet.
wine yeast...